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2021-11-09target/ppc: Implement Vector Insert Word from GPR using Immediate insnsMatheus Ferst
Implements the following PowerISA v3.1 instructions: vinsw: Vector Insert Word from GPR using immediate-specified index vinsd: Vector Insert Doubleword from GPR using immediate-specified index Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211104123719.323713-7-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement Vector Insert from GPR using GPR index insnsMatheus Ferst
Implements the following PowerISA v3.1 instructions: vinsblx: Vector Insert Byte from GPR using GPR-specified Left-Index vinshlx: Vector Insert Halfword from GPR using GPR-specified Left-Index vinswlx: Vector Insert Word from GPR using GPR-specified Left-Index vinsdlx: Vector Insert Doubleword from GPR using GPR-specified Left-Index vinsbrx: Vector Insert Byte from GPR using GPR-specified Right-Index vinshrx: Vector Insert Halfword from GPR using GPR-specified Right-Index vinswrx: Vector Insert Word from GPR using GPR-specified Right-Index vinsdrx: Vector Insert Doubleword from GPR using GPR-specified Right-Index The helpers and do_vinsx receive i64 to allow code sharing with the future implementation of Vector Insert from VSR using GPR Index. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211104123719.323713-6-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement vsldbi/vsrdbi instructionsMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211104123719.323713-5-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement vpdepd/vpextd instructionMatheus Ferst
pdepd and pextd helpers are moved out of #ifdef (TARGET_PPC64) to allow them to be reused as GVecGen3.fni8. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211104123719.323713-4-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement vclzdm/vctzdm instructionsMatheus Ferst
The signature of do_cntzdm is changed to allow reuse as GVecGen3i.fni8. The method is also moved out of #ifdef TARGET_PPC64, as PowerISA doesn't say vclzdm and vctzdm are 64-bit only. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211104123719.323713-3-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move vcfuged to vmx-impl.c.incMatheus Ferst
There's no reason to keep vector-impl.c.inc separate from vmx-impl.c.inc. Additionally, let GVec handle the multiple calls to helper_cfuged for us. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211104123719.323713-2-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move ddedpd[q],denbcd[q],dscli[q],dscri[q] to decodetreeLuis Pires
Move the following instructions to decodetree: ddedpd: DFP Decode DPD To BCD ddedpdq: DFP Decode DPD To BCD Quad denbcd: DFP Encode BCD To DPD denbcdq: DFP Encode BCD To DPD Quad dscli: DFP Shift Significand Left Immediate dscliq: DFP Shift Significand Left Immediate Quad dscri: DFP Shift Significand Right Immediate dscriq: DFP Shift Significand Right Immediate Quad Also deleted dfp-ops.c.inc, now that all PPC DFP instructions were moved to decodetree. Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-16-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dct{dp,qpq},dr{sp,dpq},dc{f,t}fix[q],dxex[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dctdp: DFP Convert To DFP Long dctqpq: DFP Convert To DFP Extended drsp: DFP Round To DFP Short drdpq: DFP Round To DFP Long dcffix: DFP Convert From Fixed dcffixq: DFP Convert From Fixed Quad dctfix: DFP Convert To Fixed dctfixq: DFP Convert To Fixed Quad dxex: DFP Extract Biased Exponent dxexq: DFP Extract Biased Exponent Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-15-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dqua[q], drrnd[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dqua: DFP Quantize dquaq: DFP Quantize Quad drrnd: DFP Reround drrndq: DFP Reround Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-14-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dquai[q], drint{x,n}[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dquai: DFP Quantize Immediate dquaiq: DFP Quantize Immediate Quad drintx: DFP Round to FP Integer With Inexact drintxq: DFP Round to FP Integer With Inexact Quad drintn: DFP Round to FP Integer Without Inexact drintnq: DFP Round to FP Integer Without Inexact Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-13-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dcmp{u,o}[q],dts{tex,tsf,tsfi}[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dcmpu: DFP Compare Unordered dcmpuq: DFP Compare Unordered Quad dcmpo: DFP Compare Ordered dcmpoq: DFP Compare Ordered Quad dtstex: DFP Test Exponent dtstexq: DFP Test Exponent Quad dtstsf: DFP Test Significance dtstsfq: DFP Test Significance Quad dtstsfi: DFP Test Significance Immediate dtstsfiq: DFP Test Significance Immediate Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-12-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move d{add,sub,mul,div,iex}[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dadd: DFP Add daddq: DFP Add Quad dsub: DFP Subtract dsubq: DFP Subtract Quad dmul: DFP Multiply dmulq: DFP Multiply Quad ddiv: DFP Divide ddivq: DFP Divide Quad diex: DFP Insert Biased Exponent diexq: DFP Insert Biased Exponent Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-11-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dtstdc[q]/dtstdg[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dtstdc: DFP Test Data Class dtstdcq: DFP Test Data Class Quad dtstdg: DFP Test Data Group dtstdgq: DFP Test Data Group Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-10-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Do not update nip on DFP instructionsLuis Pires
Before moving the existing DFP instructions to decodetree, drop the nip update that shouldn't be done for these instructions. Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-9-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement DCTFIXQQLuis Pires
Implement the following PowerISA v3.1 instruction: dctfixqq: DFP Convert To Fixed Quadword Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-8-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement DCFFIXQQLuis Pires
Implement the following PowerISA v3.1 instruction: dcffixqq: DFP Convert From Fixed Quadword Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-5-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Introduce REQUIRE_FPUFernando Valle
Signed-off-by: Fernando Valle <fernando.valle@eldorado.org.br> Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-4-luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move REQUIRE_ALTIVEC/VECTOR to translate.cBruno Larsen
Move REQUIRE_ALTIVEC to translate.c and rename it to REQUIRE_VECTOR. Signed-off-by: Bruno Larsen <bruno.larsen@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Signed-off-by: Fernando Valle <fernando.valle@eldorado.org.br> Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20211029192417.400707-3-luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement pextd instructionMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-11-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement pdepd instructionMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-10-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement cnttzdmLuis Pires
Implement the following PowerISA v3.1 instruction: cnttzdm: Count Trailing Zeros Doubleword Under Bit Mask Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-9-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement cntlzdmLuis Pires
Implement the following PowerISA v3.1 instruction: cntlzdm: Count Leading Zeros Doubleword Under Bit Mask Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-8-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement PLQ and PSTQMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-7-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move LQ and STQ to decodetreeMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-6-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement PLFS, PLFD, PSTFS and PSTFD instructionsFernando Eckhardt Valle
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Fernando Eckhardt Valle <fernando.valle@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-5-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move load and store floating point instructions to decodetreeFernando Eckhardt Valle
Move load floating point instructions (lfs, lfsu, lfsx, lfsux, lfd, lfdu, lfdx, lfdux) and store floating point instructions(stfs, stfsu, stfsx, stfsux, stfd, stfdu, stfdx, stfdux) from legacy system to decodetree. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Fernando Eckhardt Valle <fernando.valle@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-4-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: move resolve_PLS_D to translate.cFernando Eckhardt Valle
Move resolve_PLS_D from fixedpoint-impl.c.inc to translate.c because this way the function can be used not only by fixed point instructions. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Fernando Eckhardt Valle <phervalle@gmail.com> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-3-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: introduce do_ea_calcFernando Eckhardt Valle
The do_ea_calc function will calculate the effective address(EA) according to PowerIsa 3.1. With that, it was replaced part of do_ldst() that calculates the EA by this new function. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Fernando Eckhardt Valle (pherde) <phervalle@gmail.com> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-2-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-03Merge remote-tracking branch ↵Richard Henderson
'remotes/vivier/tags/trivial-branch-for-6.2-pull-request' into staging Trivial patches branch pull request 20211101 v2 # gpg: Signature made Tue 02 Nov 2021 07:21:44 PM EDT # 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] * remotes/vivier/tags/trivial-branch-for-6.2-pull-request: hw/input/lasips2: Fix typos in function names MAINTAINERS: Split HPPA TCG vs HPPA machines/hardware hw/core/machine: Add the missing delimiter in cpu_slot_to_string() monitor: Trim some trailing space from human-readable output Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-11-02target/ppc: Restrict ppc_cpu_do_unaligned_access to sysemuRichard Henderson
This is not used by, nor required by, user-only. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-11-02target/ppc: Set fault address in ppc_cpu_do_unaligned_accessRichard Henderson
We ought to have been recording the virtual address for reporting to the guest trap handler. Cc: qemu-ppc@nongnu.org Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-11-02target/ppc: Move SPR_DSISR setting to powerpc_excpRichard Henderson
By doing this while sending the exception, we will have already done the unwinding, which makes the ppc_cpu_do_unaligned_access code a bit cleaner. Update the comment about the expected instruction format. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-11-02target/ppc: Implement ppc_cpu_record_sigsegvRichard Henderson
Record DAR, DSISR, and exception_index. That last means that we must exit to cpu_loop ourselves, instead of letting exception_index being overwritten. This is exactly what the user-mode ppc_cpu_tlb_fill does, so simply rename it as ppc_cpu_record_sigsegv. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-31monitor: Trim some trailing space from human-readable outputMarkus Armbruster
I noticed -cpu help printing enough trailing spaces to make the output at least 84 characters wide. Looks ugly unless the terminal is wider. Ugly or not, trailing spaces are stupid. The culprit is this line in x86_cpu_list_entry(): qemu_printf("x86 %-20s %-58s\n", name, desc); This prints a string with minimum field left-justified right before a newline. Change it to qemu_printf("x86 %-20s %s\n", name, desc); which avoids the trailing spaces and is simpler to boot. A search for the pattern with "git-grep -E '%-[0-9]+s\\n'" found a few more instances. Change them similarly. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Greg Kurz <groug@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Message-Id: <20211009152401.2982862-1-armbru@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-10-27host-utils: add 128-bit quotient support to divu128/divs128Luis Pires
These will be used to implement new decimal floating point instructions from Power ISA 3.1. The remainder is now returned directly by divu128/divs128, freeing up phigh to receive the high 64 bits of the quotient. Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211025191154.350831-4-luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-27host-utils: move checks out of divu128/divs128Luis Pires
In preparation for changing the divu128/divs128 implementations to allow for quotients larger than 64 bits, move the div-by-zero and overflow checks to the callers. Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211025191154.350831-2-luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-21target/ppc: adding user read/write functions for PMCsDaniel Henrique Barboza
Problem state needs to be able to read and write the PMU counters, otherwise it won't be aware of any sampling result that the PMU produces after a Perf run. This patch does that in a similar fashion as already done in the previous patches. PMCs 5 and 6 have a special condition, aside from the constraints that are common with PMCs 1-4, where they are not part of the PMU if MMCR0_PMCC is 0b11. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20211018010133.315842-5-danielhb413@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: add user read/write functions for MMCR2Daniel Henrique Barboza
Similar to the previous patch, let's add problem state read/write access to the MMCR2 SPR, which is also a group A PMU SPR that needs to be filtered to be read/written by userspace. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20211018010133.315842-4-danielhb413@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: add user read/write functions for MMCR0Gustavo Romero
Userspace need access to PMU SPRs to be able to operate the PMU. One of such SPRs is MMCR0. MMCR0, as defined by PowerISA v3.1, is classified as a 'group A' PMU register. This class of registers has common read/write rules that are governed by MMCR0 PMCC bits. MMCR0 is also not fully exposed to problem state: only MMCR0_FC, MMCR0_PMAO and MMCR0_PMAE bits are readable/writable in this case. This patch exposes MMCR0 to userspace by doing the following: - two new callbacks, spr_read_MMCR0_ureg() and spr_write_MMCR0_ureg(), are added to be used as problem state read/write callbacks of UMMCR0. Both callbacks filters the amount of bits userspace is able to read/write by using a MMCR0_UREG_MASK; - problem state access control is done by the spr_groupA_read_allowed() and spr_groupA_write_allowed() helpers. These helpers will read the current PMCC bits from DisasContext and check whether the read/write MMCR0 operation is valid or noti; - to avoid putting exclusive PMU logic into the already loaded translate.c file, let's create a new 'power8-pmu-regs.c.inc' file that will hold all the spr_read/spr_write functions of PMU registers. The 'power8' name of this new file intends to hint about the proven support of the PMU logic to be added. The code has been tested with the IBM POWER chip family, POWER8 being the oldest version tested. This doesn't mean that the PMU logic will break with any other PPC64 chip that implements Book3s, but rather that we can't assert that it works properly with any Book3s compliant chip. CC: Gustavo Romero <gustavo.romero@linaro.org> Signed-off-by: Gustavo Romero <gromero@linux.ibm.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20211018010133.315842-3-danielhb413@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: add MMCR0 PMCC bits to hflagsDaniel Henrique Barboza
We're going to add PMU support for TCG PPC64 chips, based on IBM POWER8+ emulation and following PowerISA v3.1. This requires several PMU related registers to be exposed to userspace (problem state). PowerISA v3.1 dictates that the PMCC bits of the MMCR0 register controls the level of access of the PMU registers to problem state. This patch start things off by exposing both PMCC bits to hflags, allowing us to access them via DisasContext in the read/write callbacks that we're going to add next. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20211018010133.315842-2-danielhb413@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: Filter mtmsr[d] input before setting MSRMatheus Ferst
PowerISA says that mtmsr[d] "does not alter MSR[HV], MSR[S], MSR[ME], or MSR[LE]", but the current code only filters the GPR-provided value if L=1. This behavior caused some problems in FreeBSD, and a build option was added to work around the issue [1], but it seems that the bug was not reported in launchpad/gitlab. This patch address the issue in qemu, so the option on FreeBSD should no longer be required. [1] https://cgit.freebsd.org/src/commit/?id=4efb1ca7d2a44cfb33d7f9e18bd92f8d68dcfee0 Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211015181940.197982-1-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: Fix XER access in monitorMatheus Ferst
We can't read env->xer directly, as it does not contain some bits of XER. Instead, we should have a callback that uses cpu_read_xer to read the complete register. Fixes: da91a00f191f ("target-ppc: Split out SO, OV, CA fields from XER") Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211014223234.127012-5-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21linux-user: Fix XER access in ppc version of elf_core_copy_regsMatheus Ferst
env->xer doesn't hold some bits of XER, like OV and CA. To write the complete register in the core dump we should read XER value with cpu_read_xer. Reported-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br> Fixes: da91a00f191f ("target-ppc: Split out SO, OV, CA fields from XER") Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211014223234.127012-4-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: Fix XER access in gdbstubMatheus Ferst
The value of XER is split in multiple fields of CPUPPCState, like env->xer and env->so. To get/set the whole register from gdb, we should use cpu_read_xer/cpu_write_xer. Fixes: da91a00f191f ("target-ppc: Split out SO, OV, CA fields from XER") Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211014223234.127012-3-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: Use tcg_constant_i64() in gen_brh()Philippe Mathieu-Daudé
The mask of the Byte-Reverse Halfword opcode is a read-only constant. We can avoid using a TCG temporary by moving the mask to the constant pool. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211003141711.3673181-3-f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-21target/ppc: Use tcg_constant_i32() in gen_setb()Philippe Mathieu-Daudé
Avoid using TCG temporaries for the -1 and 8 constant values. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211003141711.3673181-2-f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-15target/ppc: Drop exit checks for singlestep_enabledRichard Henderson
GDB single-stepping is now handled generically. Reuse gen_debug_exception to handle architectural debug exceptions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-13accel/tcg: Move cpu_atomic decls to exec/cpu_ldst.hRichard Henderson
The previous placement in tcg/tcg.h was not logical. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-13target/ppc: Use MO_128 for 16 byte atomicsRichard Henderson
Cc: qemu-ppc@nongnu.org Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-30target/ppc: Check privilege level based on PSR and LPCR[HR] in tlbie[l]Matheus Ferst
PowerISA v3.0B made tlbie[l] hypervisor privileged when PSR=0 and HR=1. To allow the check at translation time, we'll use the HR bit of LPCR to check the MMU mode instead of the PATE.HR. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20210917114751.206845-3-matheus.ferst@eldorado.org.br> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-17 18:19:36 +0000