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whpx: i386: trace unsupported MSR accesses

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Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Link: https://lore.kernel.org/r/20260327011152.4126-4-mohamed@unpredictable.fr
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mohamed Mediouni
2026-03-27 02:11:51 +01:00
committed by Paolo Bonzini
parent ea1169bca4
commit 77a5deba0d
4 changed files with 7 additions and 2 deletions
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1
meson.build
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@@ -3687,6 +3687,7 @@ if have_system or have_user
'target/hppa', 'target/hppa',
'target/i386', 'target/i386',
'target/i386/kvm', 'target/i386/kvm',
'target/i386/whpx',
'target/loongarch', 'target/loongarch',
'target/mips/tcg', 'target/mips/tcg',
'target/ppc', 'target/ppc',

1
target/i386/whpx/trace-events Normal file
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@@ -0,0 +1 @@
whpx_unsupported_msr_access(uint32_t msr, int is_write) "WHPX: Unsupported MSR access (0x%x), IsWrite=%i"

2
target/i386/whpx/trace.h Normal file
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@@ -0,0 +1,2 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "trace/trace-target_i386_whpx.h"

5
target/i386/whpx/whpx-all.c
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@@ -41,6 +41,7 @@
#include "emulate/x86_emu.h" #include "emulate/x86_emu.h"
#include "emulate/x86_flags.h" #include "emulate/x86_flags.h"
#include "emulate/x86_mmu.h" #include "emulate/x86_mmu.h"
#include "trace.h"
#include <winhvplatform.h> #include <winhvplatform.h>
@@ -1921,8 +1922,8 @@ int whpx_vcpu_run(CPUState *cpu)
1 : 3; 1 : 3;
if (!is_known_msr) { if (!is_known_msr) {
warn_report("WHPX: Unsupported MSR access (0x%x), IsWrite=%i", trace_whpx_unsupported_msr_access(vcpu->exit_ctx.MsrAccess.MsrNumber,
vcpu->exit_ctx.MsrAccess.MsrNumber, vcpu->exit_ctx.MsrAccess.AccessInfo.IsWrite); vcpu->exit_ctx.MsrAccess.AccessInfo.IsWrite);
} }
hr = whp_dispatch.WHvSetVirtualProcessorRegisters( hr = whp_dispatch.WHvSetVirtualProcessorRegisters(