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2023-05-06Merge tag 'pull-loongarch-20230506' of https://gitlab.com/gaosong/qemu into ↵Richard Henderson
staging Add LoongArch LSX instructions. # -----BEGIN PGP SIGNATURE----- # # iLMEAAEIAB0WIQS4/x2g0v3LLaCcbCxAov/yOSY+3wUCZFXxGwAKCRBAov/yOSY+ # 39EoA/0Uy2DPz6g7J5+9tcIRk9jLrp36aYQJ9J8zRJd226YFvHSfiBWSIteMFOEX # Z0Jx1bL6N97KK/HA74Nx++x0kVuplEGp1s5cO/odL3gYy8RaJm23p9iaDa0D/UaB # ygLvXtuzN4unDFP5EF/wa9zRkDb7qX2iBBvc8OIal7eT4dDX+g== # =gyVU # -----END PGP SIGNATURE----- # gpg: Signature made Sat 06 May 2023 07:18:03 AM BST # gpg: using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF # gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF * tag 'pull-loongarch-20230506' of https://gitlab.com/gaosong/qemu: (45 commits) hw/intc: don't use target_ulong for LoongArch ipi target/loongarch: CPUCFG support LSX target/loongarch: Use {set/get}_gpr replace to cpu_fpr target/loongarch: Implement vldi target/loongarch: Implement vld vst target/loongarch: Implement vilvl vilvh vextrins vshuf target/loongarch: Implement vreplve vpack vpick target/loongarch: Implement vinsgr2vr vpickve2gr vreplgr2vr target/loongarch: Implement vbitsel vset target/loongarch: Implement vfcmp target/loongarch: Implement vseq vsle vslt target/loongarch: Implement LSX fpu fcvt instructions target/loongarch: Implement LSX fpu arith instructions target/loongarch: Implement vfrstp target/loongarch: Implement vbitclr vbitset vbitrev target/loongarch: Implement vpcnt target/loongarch: Implement vclo vclz target/loongarch: Implement vssrlrn vssrarn target/loongarch: Implement vssrln vssran target/loongarch: Implement vsrlrn vsrarn ... Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-06target/loongarch: Add LSX data type VRegSong Gao
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Song Gao <gaosong@loongson.cn> Message-Id: <20230504122810.4094787-2-gaosong@loongson.cn>
2023-05-05ppc: spapr: cleanup cr get/set with helpers.Harsh Prateek Bora
The bits in cr reg are grouped into eight 4-bit fields represented by env->crf[8] and the related calculations should be abstracted to keep the calling routines simpler to read. This is a step towards cleaning up the related/calling code for better readability. Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230503093619.2530487-2-harshpb@linux.ibm.com> [danielhb: add 'const' modifier to fix linux-user build] Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-05-02linux-user: Add '-one-insn-per-tb' option equivalent to '-singlestep'Peter Maydell
The '-singlestep' option is confusing, because it doesn't actually have anything to do with single-stepping the CPU. What it does do is force TCG emulation to put one guest instruction in each TB, which can be useful in some situations. Create a new command line argument -one-insn-per-tb, so we can document that -singlestep is just a deprecated synonym for it, and eventually perhaps drop it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230417164041.684562-5-peter.maydell@linaro.org
2023-05-02accel/tcg: Use one_insn_per_tb global instead of old singlestep globalPeter Maydell
The only place left that looks at the old 'singlestep' global variable is the TCG curr_cflags() function. Replace the old global with a new 'one_insn_per_tb' which is defined in tcg-all.c and declared in accel/tcg/internal.h. This keeps it restricted to the TCG code, unlike 'singlestep' which was available to every file in the system and defined in multiple different places for softmmu vs linux-user vs bsd-user. While we're making this change, use qatomic_read() and qatomic_set() on the accesses to the new global, because TCG will read it without holding a lock. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230417164041.684562-4-peter.maydell@linaro.org
2023-05-02make one-insn-per-tb an accel optionPeter Maydell
This commit adds 'one-insn-per-tb' as a property on the TCG accelerator object, so you can enable it with -accel tcg,one-insn-per-tb=on It has the same behaviour as the existing '-singlestep' command line option. We use a different name because 'singlestep' has always been a confusing choice, because it doesn't have anything to do with single-stepping the CPU. What it does do is force TCG emulation to put one guest instruction in each TB, which can be useful in some situations (such as analysing debug logs). The existing '-singlestep' commandline options are decoupled from the global 'singlestep' variable and instead now are syntactic sugar for setting the accel property. (These can then go away after a deprecation period.) The global variable remains for the moment as: * what the TCG code looks at to change its behaviour * what HMP and QMP use to query and set the behaviour In the following commits we'll clean those up to not directly look at the global variable. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20230417164041.684562-2-peter.maydell@linaro.org
2023-04-04Revert "linux-user/arm: Take more care allocating commpage"Richard Henderson
This reverts commit 4f5c67f8df7f26e559509c68c45e652709edd23f. This exposes bugs in target_mmap et al with respect to overflow with the final page of the guest address space. To be fixed in the next development cycle. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-30linux-user/mips: Use P5600 as default CPU to run NaN2008 ELF binariesPhilippe Mathieu-Daudé
Per the release 6.06 revision history: 5.03 August 21, 2013 • ABS2008 and NAN2008 fields of Table 5.7 “FCSR RegisterField Descriptions” were optional in release 3 and could be R/W, but as of release 5 are required, read-only, and preset by hardware. The P5600 core implements the release 5, and has the ABS2008 and NAN2008 bits set in CP1_fcr31. Therefore it is able to run ELF binaries compiled with EF_MIPS_NAN2008, such the CIP United Debian NaN2008 distribution: http://repo.oss.cipunited.com/mipsel-nan2008/README.txt In order to run such compiled binaries, select by default the P5600 core when the ELF 'MIPS_NAN2008' flag is set. Reported-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230327162444.388-1-philmd@linaro.org>
2023-03-30linux-user/sparc: Don't use 16-bit UIDs on SPARC V9Philippe Mathieu-Daudé
The 64-bit SPARC V9 syscall ABI uses 32-bit UIDs. Only enable the 16-bit UID wrappers for 32-bit SPARC (V7 and V8). Possibly missed in commit 992f48a036 ("Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)"). Reported-by: Gregor Riepl <onitake@gmail.com> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: Zach van Rijn <me@zv.io> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1394 Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230327131910.78564-1-philmd@linaro.org>
2023-03-28linux-user/arm: Take more care allocating commpageRichard Henderson
User setting of -R reserved_va can lead to an assertion failure in page_set_flags. Sanity check the value of reserved_va and print an error message instead. Do not allocate a commpage at all for m-profile cpus. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28include/exec: Change reserved_va semantics to last byteRichard Henderson
Change the semantics to be the last byte of the guest va, rather than the following byte. This avoids some overflow conditions. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28linux-user: Pass last not end to probe_guest_baseRichard Henderson
Pass the address of the last byte of the image, rather than the first address past the last byte. This avoids overflow when the last page of the address space is involved. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28accel/tcg: Pass last not end to page_reset_target_dataRichard Henderson
Pass the address of the last byte to be changed, rather than the first address past the last byte. This avoids overflow when the last page of the address space is involved. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28accel/tcg: Pass last not end to page_set_flagsRichard Henderson
Pass the address of the last byte to be changed, rather than the first address past the last byte. This avoids overflow when the last page of the address space is involved. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1528 Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28linux-user: Diagnose misaligned -R sizeRichard Henderson
We have been enforcing host page alignment for the non-R fallback of MAX_RESERVED_VA, but failing to enforce for -R. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-22*: Add missing includes of qemu/plugin.hRichard Henderson
This had been pulled in from hw/core/cpu.h, but that will be removed. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230310195252.210956-6-richard.henderson@linaro.org> [AJB: also syscall-trace.h] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230315174331.2959-16-alex.bennee@linaro.org> Reviewed-by: Emilio Cota <cota@braap.org>
2023-03-22*: Add missing includes of qemu/error-report.hRichard Henderson
This had been pulled in via qemu/plugin.h from hw/core/cpu.h, but that will be removed. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230310195252.210956-5-richard.henderson@linaro.org> [AJB: add various additional cases shown by CI] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230315174331.2959-15-alex.bennee@linaro.org> Reviewed-by: Emilio Cota <cota@braap.org>
2023-03-12Merge tag 'linux-user-for-8.0-pull-request' of ↵Peter Maydell
https://gitlab.com/laurent_vivier/qemu into staging Pull request linux-user 20230308-v2 Fix gdt on i386/x86_64 Handle traps on sparc Add translation for argument of msync Emulate CLONE_PIDFD flag in clone handle netlink flag NLA_F_NESTED fix sockaddr_in6 endianness Fix brk() to release pages fill out task state in /proc/self/stat add support for xtensa FDPIC Fix unaligned memory access in prlimit64 syscall add target to host netlink conversions fix timerfd read endianness conversion Fix access to /proc/self/exe Add strace for prlimit64() syscall # -----BEGIN PGP SIGNATURE----- # # iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmQLqmMSHGxhdXJlbnRA # dml2aWVyLmV1AAoJEPMMOL0/L748e+cP/3XYMvPbExNi09idDvgzzBrFFHgnkCnK # WAV/laxjHSJkzRNK06jD5KN/G2Osy587GXAWLaN76Y8mYMNJs5x3wwlBrJm0RyeJ # mWeETJOjxsFjW1+5LKhYv6fwiDxQcyJUoRKzJI27fYgDS+H+zIpa+uhy82Ah543z # i/HPyerp25TWAuVyR6mQICt7cne+4yjhtcjg0GXmnvm2+UVp54FGjesjwpSdbALl # OKdCre/JaNOkKoaRSsxm0UhNEyQarJIEf/dv0fTjsEpvNX2SMuLUGCm+n23wjXGN # fdnSGkoVe8hHxBtG80Zx8AMfKEmJoVsQw9rSg4HwQKOyrYPnLhHjb8ln43X+f3MN # gq9lDBIxH82LH2Q5JqQQe7S2UJycpYb+qj0xm7llH7Wl9VVKG6hRX/Cd7I1PQLEv # baPIrtye5TuR6uo0kn6HBB+Hd9RNu2PPHelmEFIGEuNaAPkyOt4FhKFIE/j0BTcg # mFVCNj6Os805ks0sjIBvpTU1DBtuqpLxdvvHOwxYKCNThTl70wfHJJEjumfvZ4qT # T+me7hRsd+8v1rRjxYGuJn2gqC7JL8miuJCYlZkn2DfMAunmF00U5ULe9KiCJ8V3 # kDfvO+CdnIN4MSlbtwt+eRSFCmJGGkzZ/jshVxPF3ZVirFu/undphYQnaEZDH+Xd # KsPOh8MekMgJ # =e55j # -----END PGP SIGNATURE----- # gpg: Signature made Fri 10 Mar 2023 22:08:35 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu: (28 commits) linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64 linux-user/sparc: Handle tag overflow traps linux-user/sparc: Handle floating-point exceptions linux-user/sparc: Handle unimplemented flush trap linux-user/sparc: Handle coprocessor disabled trap linux-user/sparc: Handle privilidged action trap linux-user/sparc: Handle priviledged opcode trap linux-user/sparc: Handle getcc, setcc, getpsr traps linux-user/sparc: Handle division by zero traps linux-user/sparc: Handle software breakpoint trap linux-user/sparc: Fix sparc64_{get, set}_context traps linux-user/sparc: Tidy window spill/fill traps linux-user/sparc: Use TT_TRAP for flush windows linux-user/sparc: Tidy syscall error return linux-user/sparc: Tidy syscall trap linux-user: Emulate CLONE_PIDFD flag in clone() linux-user: Add translation for argument of msync() linux-user: handle netlink flag NLA_F_NESTED linux-user: fix sockaddr_in6 endianness linux-user: Add strace for prlimit64() syscall ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-10linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64fanwj@mail.ustc.edu.cn
On linux user mode, CPUX86State::gdt::base from Different CPUX86State Objects have same value, It is incorrect! Every CPUX86State::gdt::base Must points to independent memory space. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1405 Signed-off-by: fanwenjie <fanwj@mail.ustc.edu.cn> Message-Id: <4172b90.58b08.18631b77860.Coremail.fanwj@mail.ustc.edu.cn> [lv: remove unnecessary casts, split overlong line] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle tag overflow trapsRichard Henderson
This trap is raised by taddcctv and tsubcctv insns. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle floating-point exceptionsRichard Henderson
Raise SIGFPE for ieee exceptions. The other types, such as FSR_FTT_UNIMPFPOP, should not appear, because we enable normal emulation of missing insns at the start of sparc_cpu_realizefn(). Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-15-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle unimplemented flush trapRichard Henderson
For sparc64, TT_UNIMP_FLUSH == TT_ILL_INSN, so this is already handled. For sparc32, the kernel uses SKIP_TRAP. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-14-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle coprocessor disabled trapRichard Henderson
Since qemu does not implement a sparc coprocessor, all such instructions raise this trap. Because of that, we never raise the coprocessor exception trap, which would be vector 0x28. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-13-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle privilidged action trapRichard Henderson
This is raised by using an %asi < 0x80 in user-mode. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-12-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle priviledged opcode trapRichard Henderson
For the most part priviledged opcodes are ifdefed out of the user-only sparc translator, which will then incorrectly produce illegal opcode traps. But there are some code paths that properly raise TT_PRIV_INSN, so we must handle it. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-11-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle getcc, setcc, getpsr trapsRichard Henderson
These are really only meaningful for sparc32, but they're still present for backward compatibility for sparc64. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle division by zero trapsRichard Henderson
In addition to the hw trap vector, there is a software trap assigned for older sparc without hw division instructions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-9-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle software breakpoint trapRichard Henderson
This is 'ta 1' for both v9 and pre-v9. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Fix sparc64_{get, set}_context trapsRichard Henderson
These traps are present for sparc64 with ilp32, aka sparc32plus. Enabling them means adjusting the defines over in signal.c, and fixing an incorrect usage of abi_ulong when we really meant the full register, target_ulong. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Tidy window spill/fill trapsRichard Henderson
Add some macros to localize the hw difference between v9 and pre-v9. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230216054516.1267305-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Use TT_TRAP for flush windowsRichard Henderson
The v9 and pre-v9 code can be unified with this macro. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230216054516.1267305-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Tidy syscall error returnRichard Henderson
Reduce ifdefs with #define syscall_cc. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Tidy syscall trapRichard Henderson
Use TT_TRAP. For sparc32, 0x88 is the "Slowaris" system call, currently BAD_TRAP in the kernel's ttable_32.S. For sparc64, 0x110 is tl0_linux32, the sparc32 trap, now folded into the TARGET_ABI32 case via TT_TRAP. For sparc64, there does still exist trap 0x111 as tl0_oldlinux64, which was replaced by 0x16d as tl0_linux64 in 1998. Since no one has noticed, don't bother implementing it now. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230216054516.1267305-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Emulate CLONE_PIDFD flag in clone()Helge Deller
Add emulation for the CLONE_PIDFD flag of the clone() syscall. This flag was added in Linux kernel 5.2. Successfully tested on a x86-64 Linux host with hppa-linux target. Can be verified by running the testsuite of the qcoro debian package, which breaks hard and kills the currently logged-in user without this patch. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y4XoJCpvUA1JD7Sj@p100> [lv: define CLONE_PIDFD if it is not] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Add translation for argument of msync()Helge Deller
msync() uses the flags MS_ASYNC, MS_INVALIDATE and MS_SYNC, which differ between platforms, specifcally on alpha and hppa. Add a target to host translation for those and wire up a nicer strace output. This fixes the testsuite of the macaulay2 debian package with a hppa-linux guest on a x86-64 host. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y5rMcts4qe15RaVN@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: handle netlink flag NLA_F_NESTEDMathis Marion
Newer kernel versions require this flag to be present contrary to older ones. Depending on the libnl version it is added or not. Typically when using rtnl_link_inet6_set_addr_gen_mode, the netlink packet generated may contain the following attribute: with libnl 3.4 {nla_len=16, nla_type=IFLA_AF_SPEC}, [ {nla_len=12, nla_type=AF_INET6}, [{nla_len=5, nla_type=IFLA_INET6_ADDR_GEN_MODE}, IN6_ADDR_GEN_MODE_NONE] ] with libnl 3.7 {nla_len=16, nla_type=NLA_F_NESTED|IFLA_AF_SPEC}, [ {nla_len=12, nla_type=NLA_F_NESTED|AF_INET6}, [{nla_len=5, nla_type=IFLA_INET6_ADDR_GEN_MODE}, IN6_ADDR_GEN_MODE_NONE]] ] Masking the type is likely needed in other places. Only the above cases are implemented in this patch. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230307154256.101528-3-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: fix sockaddr_in6 endiannessMathis Marion
The sin6_scope_id field uses the host byte order, so there is a conversion to be made when host and target endianness differ. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230307154256.101528-2-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Add strace for prlimit64() syscallHelge Deller
Add proper prlimit64() strace output. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20221222190639.124078-1-deller@gmx.de> [lvivier: use print_raw_param64()] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Provide print_raw_param64() for 64-bit valuesHelge Deller
Add a new function print_raw_param64() to print 64-bit values in the same way as print_raw_param(). This prevents that qemu_log() is used to work around the problem that print_raw_param() can only print 32-bit values when compiled for 32-bit targets. Additionally convert the existing 64-bit users in print_timespec64(), print_rlimit64() and print_preadwrite64() over to this new function and drop some unneccessary spaces. Suggested-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y9lNbFNyRSUhhrHa@p100> [lvivier: remove print_preadwrite64 and print_rlimit64 part] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Fix brk() to release pagesHelge Deller
The current brk() implementation does not de-allocate pages if a lower address is given compared to earlier brk() calls. But according to the manpage, brk() shall deallocate memory in this case and currently it breaks a real-world application, specifically building the debian gcl package in qemu-user. Fix this issue by reworking the qemu brk() implementation. Tested with the C-code testcase included in qemu commit 4d1de87c750, and by building debian package of gcl in a hppa-linux guest on a x86-64 host. Signed-off-by: Helge Deller <deller@gmx.de> Message-Id: <Y6gId80ek49TK1xB@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: fill out task state in /proc/self/statAndreas Schwab
Some programs want to match an actual task state character. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmedq2kxoe.fsf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: add support for xtensa FDPICMax Filippov
Define xtensa-specific info_is_fdpic and fill in FDPIC-specific registers in the xtensa version of init_thread. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Message-Id: <20230205061230.544451-1-jcmvbkbc@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Fix unaligned memory access in prlimit64 syscallIlya Leoshkevich
target_rlimit64 contains uint64_t fields, so it's 8-byte aligned on some hosts, while some guests may align their respective type on a 4-byte boundary. This may lead to an unaligned access, which is an UB. Fix by defining the fields as abi_ullong. This makes the host alignment match that of the guest, and lets the compiler know that it should emit code that can deal with the guest alignment. While at it, also use __get_user() and __put_user() instead of tswap64(). Fixes: 163a05a8398b ("linux-user: Implement prlimit64 syscall") Reported-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230224003907.263914-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: add target to host netlink conversionsMathis Marion
Added conversions for: - IFLA_MTU - IFLA_TXQLEN - IFLA_AF_SPEC AF_INET6 IFLA_INET6_ADDR_GEN_MODE These relate to the libnl functions rtnl_link_set_mtu, rtnl_link_set_txqlen, and rtnl_link_inet6_set_addr_gen_mode. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230220085822.626798-4-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: fix timerfd read endianness conversionMathis Marion
When reading the expiration count from a timerfd, the endianness of the 64bit value read is the one of the host, just as for eventfds. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230220085822.626798-2-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Fix access to /proc/self/exeHelge Deller
When accsssing /proc/self/exe from a userspace program, linux-user tries to resolve the name via realpath(), which may fail if the process changed the working directory in the meantime. An example: - a userspace program ist started with ./testprogram - the program runs chdir("/tmp") - then the program calls readlink("/proc/self/exe") - linux-user tries to run realpath("./testprogram") which fails because ./testprogram isn't in /tmp - readlink() will return -ENOENT back to the program Avoid this issue by resolving the full path name of the started process at startup of linux-user and store it in real_exec_path[]. This then simplifies the emulation of readlink() and readlinkat() as well, because they can simply copy the path string to userspace. I noticed this bug because the testsuite of the debian package "pandoc" failed on linux-user while it succeeded on real hardware. The full log is here: https://buildd.debian.org/status/fetch.php?pkg=pandoc&arch=hppa&ver=2.17.1.1-1.1%2Bb1&stamp=1670153210&raw=0 Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20221205113825.20615-1-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-07gdbstub: move syscall handling to new fileAlex Bennée
Our GDB syscall support is the last chunk of code that needs target specific support so move it to a new file. We take the opportunity to move the syscall state into its own singleton instance and add in a few helpers for the main gdbstub to interact with the module. I also moved the gdb_exit() declaration into syscalls.h as it feels pretty related and most of the callers of it treat it as such. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-22-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-22-richard.henderson@linaro.org>
2023-03-07gdbstub: move chunks of user code into own filesAlex Bennée
The process was pretty similar to the softmmu move except we take the time to split stuff between user.c and user-target.c to avoid as much target specific compilation as possible. We also start to make use of our shiny new header scheme so the user-only helpers can be included without the rest of the exec/gsbstub.h cruft. As before we split some functions into user and softmmu versions Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-12-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-12-richard.henderson@linaro.org>
2023-03-07includes: move tb_flush into its own headerAlex Bennée
This aids subsystems (like gdbstub) that want to trigger a flush without pulling target specific headers. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-8-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-8-richard.henderson@linaro.org>
2023-02-21linux-user/microblaze: Handle privileged exceptionIlya Leoshkevich
Follow what kernel's full_exception() is doing. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230214140829.45392-4-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-04 01:03:32 +0000