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2021-08-13target/i386: Fixed size of constant for WindowsLara Lazier
~0UL has 64 bits on Linux and 32 bits on Windows. Fixes: https://gitlab.com/qemu-project/qemu/-/issues/512 Reported-by: Volker Rümelin <vr_qemu@t-online.de> Signed-off-by: Lara Lazier <laramglazier@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210812111056.26926-1-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-29target/i386: fix typo in ctl_has_irqPaolo Bonzini
The shift constant was incorrect, causing int_prio to always be zero. Signed-off-by: Lara Lazier <laramglazier@gmail.com> [Rewritten commit message since v1 had already been included. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-29target/i386: Added consistency checks for event injectionLara Lazier
VMRUN exits with SVM_EXIT_ERR if either: * The event injected has a reserved type. * When the event injected is of type 3 (exception), and the vector that has been specified does not correspond to an exception. This does not fix the entire exc_inj test in kvm-unit-tests. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210725090855.19713-1-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-23i386: do not call cpudef-only models functions for max, host, baseClaudio Fontana
Some cpu properties have to be set only for cpu models in builtin_x86_defs, registered with x86_register_cpu_model_type, and not for cpu models "base", "max", and the subclass "host". These properties are the ones set by function x86_cpu_apply_props, (also including kvm_default_props, tcg_default_props), and the "vendor" property for the KVM and HVF accelerators. After recent refactoring of cpu, which also affected these properties, they were instead set unconditionally for all x86 cpus. This has been detected as a bug with Nested on AMD with cpu "host", as svm was not turned on by default, due to the wrongful setting of kvm_default_props via x86_cpu_apply_props, which set svm to "off". Rectify the bug introduced in commit "i386: split cpu accelerators" and document the functions that are builtin_x86_defs-only. Signed-off-by: Claudio Fontana <cfontana@suse.de> Tested-by: Alexander Bulekov <alxndr@bu.edu> Fixes: f5cc5a5c ("i386: split cpu accelerators from cpu.c,"...) Resolves: https://gitlab.com/qemu-project/qemu/-/issues/477 Message-Id: <20210723112921.12637-1-cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-23target/i386: Added consistency checks for CR3Lara Lazier
All MBZ in CR3 must be zero (APM2 15.5) Added checks in both helper_vmrun and helper_write_crN. When EFER.LMA is zero the upper 32 bits needs to be zeroed. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210723112740.45962-1-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-22Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell
staging Bugfixes. # gpg: Signature made Thu 22 Jul 2021 14:11:27 BST # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini-gitlab/tags/for-upstream: configure: Let --without-default-features disable vhost-kernel and vhost-vdpa configure: Fix the default setting of the "xen" feature configure: Allow vnc to get disabled with --without-default-features configure: Fix --without-default-features propagation to meson meson: fix dependencies for modinfo configure: Drop obsolete check for the alloc_size attribute target/i386: Added consistency checks for EFER target/i386: Added consistency checks for CR4 target/i386: Added V_INTR_PRIO check to virtual interrupts qemu-config: restore "machine" in qmp_query_command_line_options() usb: fix usb-host dependency check chardev-spice: add missing module_obj directive vl: Parse legacy default_machine_opts qemu-config: fix memory leak on ferror() qemu-config: never call the callback after an error, fix leak Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-22target/i386: Added consistency checks for EFERLara Lazier
EFER.SVME has to be set, and EFER reserved bits must be zero. In addition the combinations * EFER.LMA or EFER.LME is non-zero and the processor does not support LM * non-zero EFER.LME and CR0.PG and zero CR4.PAE * non-zero EFER.LME and CR0.PG and zero CR0.PE * non-zero EFER.LME, CR0.PG, CR4.PAE, CS.L and CS.D are all invalid. (AMD64 Architecture Programmer's Manual, V2, 15.5) Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210721152651.14683-3-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-22target/i386: Added consistency checks for CR4Lara Lazier
All MBZ bits in CR4 must be zero. (APM2 15.5) Added reserved bitmask and added checks in both helper_vmrun and helper_write_crN. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210721152651.14683-2-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-22target/i386: Added V_INTR_PRIO check to virtual interruptsLara Lazier
The APM2 states that The processor takes a virtual INTR interrupt if V_IRQ and V_INTR_PRIO indicate that there is a virtual interrupt pending whose priority is greater than the value in V_TPR. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210721152651.14683-1-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-21accel/tcg: Remove TranslatorOps.breakpoint_checkRichard Henderson
The hook is now unused, with breakpoints checked outside translation. Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-21target/i386: Implement debug_check_breakpointRichard Henderson
Return false for RF set, as we do in i386_tr_breakpoint_check. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-21tcg: Rename helper_atomic_*_mmu and provide for user-onlyRichard Henderson
Always provide the atomic interface using TCGMemOpIdx oi and uintptr_t retaddr. Rename from helper_* to cpu_* so as to (mostly) match the exec/cpu_ldst.h functions, and to emphasize that they are not callable from TCG directly. Tested-by: Cole Robinson <crobinso@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-13target/i386: Correct implementation for FCS, FIP, FDS and FDPZiqiao Kong
Update FCS:FIP and FDS:FDP according to the Intel Manual Vol.1 8.1.8. Note that CPUID.(EAX=07H,ECX=0H):EBX[bit 13] is not implemented by design in this patch and will be added along with TCG features flag in a separate patch later. Signed-off-by: Ziqiao Kong <ziqiaokong@gmail.com> Message-Id: <20210530150112.74411-2-ziqiaokong@gmail.com> [rth: Push FDS/FDP handling down into mod != 3 case; free last_addr.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-13target/i386: Split out do_fninitRichard Henderson
Do not call helper_fninit directly from helper_xrstor. Do call the new helper from do_fsave. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-13target/i386: Trivial code motion and code style fixZiqiao Kong
A new pair of braces has to be added to declare variables in the case block. The code style is also fixed according to the transalte.c itself during the code motion. Signed-off-by: Ziqiao Kong <ziqiaokong@gmail.com> Message-Id: <20210530150112.74411-1-ziqiaokong@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-13target/i386: Tidy hw_breakpoint_removeDmitry Voronetskiy
Since cpu_breakpoint and cpu_watchpoint are in a union, the code should access only one of them. Signed-off-by: Dmitry Voronetskiy <davoronetskiy@gmail.com> Message-Id: <20210613180838.21349-1-davoronetskiy@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-12Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210710' ↵Peter Maydell
into staging Add translator_use_goto_tb. Cleanups in prep of breakpoint fixes. Misc fixes. # gpg: Signature made Sat 10 Jul 2021 16:29:14 BST # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full] # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * remotes/rth-gitlab/tags/pull-tcg-20210710: (41 commits) cpu: Add breakpoint tracepoints tcg: Remove TCG_TARGET_HAS_goto_ptr accel/tcg: Log tb->cflags with -d exec accel/tcg: Split out log_cpu_exec accel/tcg: Move tb_lookup to cpu-exec.c accel/tcg: Move helper_lookup_tb_ptr to cpu-exec.c target/i386: Use cpu_breakpoint_test in breakpoint_handler tcg: Fix prologue disassembly target/xtensa: Use translator_use_goto_tb target/tricore: Use tcg_gen_lookup_and_goto_ptr target/tricore: Use translator_use_goto_tb target/sparc: Use translator_use_goto_tb target/sh4: Use translator_use_goto_tb target/s390x: Remove use_exit_tb target/s390x: Use translator_use_goto_tb target/rx: Use translator_use_goto_tb target/riscv: Use translator_use_goto_tb target/ppc: Use translator_use_goto_tb target/openrisc: Use translator_use_goto_tb target/nios2: Use translator_use_goto_tb ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09target/i386: Use cpu_breakpoint_test in breakpoint_handlerRichard Henderson
The loop is performing a simple boolean test for the existence of a BP_CPU breakpoint at EIP. Plus it gets the iteration wrong, if we happen to have a BP_GDB breakpoint at the same address. We have a function for this: cpu_breakpoint_test. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20210620062317.1399034-1-richard.henderson@linaro.org>
2021-07-09target/i386: Use translator_use_goto_tbRichard Henderson
Just use translator_use_goto_tb directly at the one call site, rather than maintaining a local wrapper. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09tcg: Avoid including 'trace-tcg.h' in target translate.cPhilippe Mathieu-Daudé
The root trace-events only declares a single TCG event: $ git grep -w tcg trace-events trace-events:115:# tcg/tcg-op.c trace-events:137:vcpu tcg guest_mem_before(TCGv vaddr, uint16_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d" and only a tcg/tcg-op.c uses it: $ git grep -l trace_guest_mem_before_tcg tcg/tcg-op.c therefore it is pointless to include "trace-tcg.h" in each target (because it is not used). Remove it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210629050935.2570721-1-f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09target/i386: fix exceptions for MOV to DRPaolo Bonzini
Use raise_exception_ra (without error code) when raising the illegal opcode operation; raise #GP when setting bits 63:32 of DR6 or DR7. Move helper_get_dr to sysemu/ since it is a privileged instruction that is not needed on user-mode emulators. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09target/i386: Added DR6 and DR7 consistency checksLara Lazier
DR6[63:32] and DR7[63:32] are reserved and need to be zero. (AMD64 Architecture Programmer's Manual, V2, 15.5) Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210705081802.18960-3-laramglazier@gmail.com> [Ignore for 32-bit builds. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09target/i386: Added MSRPM and IOPM size checkLara Lazier
The address of the last entry in the MSRPM and in the IOPM must be smaller than the largest physical address. (APM2 15.10-15.11) Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210705081802.18960-2-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06target/i386: Move X86XSaveArea into TCGDavid Edmondson
Given that TCG is now the only consumer of X86XSaveArea, move the structure definition and associated offset declarations and checks to a TCG specific header. Signed-off-by: David Edmondson <david.edmondson@oracle.com> Message-Id: <20210705104632.2902400-9-david.edmondson@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06target/i386: Populate x86_ext_save_areas offsets using cpuid where possibleDavid Edmondson
Rather than relying on the X86XSaveArea structure definition, determine the offset of XSAVE state areas using CPUID leaf 0xd where possible (KVM and HVF). Signed-off-by: David Edmondson <david.edmondson@oracle.com> Message-Id: <20210705104632.2902400-8-david.edmondson@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-29target/i386: Improve bswap translationRichard Henderson
Use a break instead of an ifdefed else. There's no need to move the values through s->T0. Remove TCG_BSWAP_IZ and the preceding zero-extension. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-29tcg: Add flags argument to tcg_gen_bswap16_*, tcg_gen_bswap32_i64Richard Henderson
Implement the new semantics in the fallback expansion. Change all callers to supply the flags that keep the semantics unchanged locally. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-16target/i386: Added Intercept CR0 writes checkLara Lazier
When the selective CR0 write intercept is set, all writes to bits in CR0 other than CR0.TS or CR0.MP cause a VMEXIT. Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210616123907.17765-5-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-16target/i386: Added consistency checks for CR0Lara Lazier
The combination of unset CD and set NW bit in CR0 is illegal. CR0[63:32] are also reserved and need to be zero. (AMD64 Architecture Programmer's Manual, V2, 15.5) Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210616123907.17765-4-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-16target/i386: Added consistency checks for VMRUN intercept and ASIDLara Lazier
Zero VMRUN intercept and ASID should cause an immediate VMEXIT during the consistency checks performed by VMRUN. (AMD64 Architecture Programmer's Manual, V2, 15.5) Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210616123907.17765-3-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-16target/i386: Refactored intercept checks into cpu_svm_has_interceptLara Lazier
Added cpu_svm_has_intercept to reduce duplication when checking the corresponding intercept bit outside of cpu_svm_check_intercept_param Signed-off-by: Lara Lazier <laramglazier@gmail.com> Message-Id: <20210616123907.17765-2-laramglazier@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04target/i386: Fix decode of cr8Richard Henderson
A recent cleanup did not recognize that there are two ways to encode cr8: one via the LOCK and the other via REX. Fixes: 7eff2e7c Resolves: https://gitlab.com/qemu-project/qemu/-/issues/380 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210602035511.96834-1-richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04target/i386: tcg: fix switching from 16-bit to 32-bit tasks or vice versaPaolo Bonzini
The format of the task state segment is governed by bit 3 in the descriptor type field. On a task switch, the format for saving is given by the current value of TR's type field, while the format for loading is given by the new descriptor. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04target/i386: tcg: fix loading of registers from 16-bit TSSPaolo Bonzini
According to the manual, the high 16-bit of the registers are preserved when switching to a 16-bit task. Implement this in switch_tss_ra. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04target/i386: tcg: fix segment register offsets for 16-bit TSSPaolo Bonzini
The TSS offsets in the manuals have only 2-byte slots for the segment registers. QEMU incorrectly uses 4-byte slots, so that SS overlaps the LDT selector. Resolves: #382 Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-03softfloat: Introduce Floatx80RoundPrecRichard Henderson
Use an enumeration instead of raw 32/64/80 values. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-05-26hw/core: Constify TCGCPUOpsRichard Henderson
We no longer have any runtime modifications to this struct, so declare them all const. Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20210227232519.222663-3-richard.henderson@linaro.org>
2021-05-20Merge remote-tracking branch 'remotes/cohuck-gitlab/tags/s390x-20210520-v2' ↵Peter Maydell
into staging s390x fixes and cleanups; also related fixes in xtensa, arm, and x86 code # gpg: Signature made Thu 20 May 2021 13:23:15 BST # gpg: using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF # gpg: issuer "cohuck@redhat.com" # gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown] # gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full] # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full] # gpg: aka "Cornelia Huck <cohuck@kernel.org>" [unknown] # gpg: aka "Cornelia Huck <cohuck@redhat.com>" [unknown] # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF * remotes/cohuck-gitlab/tags/s390x-20210520-v2: tests/tcg/x86_64: add vsyscall smoke test target/i386: Make sure that vsyscall's tb->size != 0 vfio-ccw: Attempt to clean up all IRQs on error hw/s390x/ccw: Register qbus type in abstract TYPE_CCW_DEVICE parent vfio-ccw: Permit missing IRQs accel/tcg: Assert that tb->size != 0 after translation target/xtensa: Make sure that tb->size != 0 target/arm: Make sure that commpage's tb->size != 0 target/s390x: Fix translation exception on illegal instruction Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-20target/i386: Make sure that vsyscall's tb->size != 0Ilya Leoshkevich
tb_gen_code() assumes that tb->size must never be zero, otherwise it may produce spurious exceptions. For x86_64 this may happen when creating a translation block for the vsyscall page. Fix by pretending that vsyscall translation blocks have at least one instruction. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210519045738.1335210-2-iii@linux.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-05-19target/i386: Remove user-only i/o stubsRichard Henderson
With the previous patch for check_io, we now have enough for the compiler to dead-code eliminate all of the i/o helpers. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-51-richard.henderson@linaro.org>
2021-05-19target/i386: Move helper_check_io to sysemuRichard Henderson
The we never allow i/o from user-only, and the tss check that helper_check_io does will always fail. Use an ifdef within gen_check_io and return false, indicating that an exception is known to be raised. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-50-richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-05-19target/i386: Create helper_check_ioRichard Henderson
Drop helper_check_io[bwl] and expose their common subroutine to tcg directly. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210514151342.384376-49-richard.henderson@linaro.org>
2021-05-19target/i386: Pass in port to gen_check_ioRichard Henderson
Pass in a pre-truncated TCGv_i32 value. We were doing the truncation of EDX in multiple places, now only once per insn. While all callers use s->tmp2_i32, for cleanliness of the subroutine, use a parameter anyway. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-48-richard.henderson@linaro.org>
2021-05-19target/i386: Tidy gen_check_ioRichard Henderson
Get cur_eip from DisasContext. Do not require the caller to use svm_is_rep; get prefix from DisasContext. Use the proper symbolic constants for SVM_IOIO_*. While we're touching all call sites, return bool in preparation for gen_check_io raising #GP. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-47-richard.henderson@linaro.org>
2021-05-19target/i386: Exit tb after wrmsrRichard Henderson
At minimum, wrmsr can change efer, which affects HF_LMA. Cc: qemu-stable@nongnu.org Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-46-richard.henderson@linaro.org>
2021-05-19target/i386: Eliminate user stubs for read/write_crN, rd/wrmsrRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-45-richard.henderson@linaro.org>
2021-05-19target/i386: Inline user cpu_svm_check_intercept_paramRichard Henderson
The user-version is a no-op. This lets us completely remove tcg/user/svm_stubs.c. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-44-richard.henderson@linaro.org>
2021-05-19target/i386: Unify invlpg, invlpgaRichard Henderson
Use a single helper, flush_page, to do the work. Use gen_svm_check_intercept. Perform the zero-extension for invlpga inline. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-43-richard.henderson@linaro.org>
2021-05-19target/i386: Move invlpg, hlt, monitor, mwait to sysemuRichard Henderson
These instructions are all privileged. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-42-richard.henderson@linaro.org>
2021-05-19target/i386: Pass env to do_pause and do_hltRichard Henderson
Having the callers upcast to X86CPU is a waste, since we don't need it. We even have to recover env in do_hlt. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210514151342.384376-41-richard.henderson@linaro.org>
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