AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/x86/kvm
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Pankaj Gupta 2cdef91cf8 KVM: x86: handle MSR_IA32_DEBUGCTLMSR with report_ignored_msrs 
Windows2016 guest tries to enable LBR by setting the corresponding bits
in MSR_IA32_DEBUGCTLMSR. KVM does not emulate MSR_IA32_DEBUGCTLMSR and
spams the host kernel logs with error messages like:

	kvm [...]: vcpu1, guest rIP: 0xfffff800a8b687d3 kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop"

This patch fixes this by enabling error logging only with
'report_ignored_msrs=1'.

Signed-off-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com>
Message-Id: <20201105153932.24316-1-pankaj.gupta.linux@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-11-08 04:41:31 -05:00
..
mmu KVM: x86/mmu: fix counting of rmap entries in pte_list_add 2020-11-08 04:41:26 -05:00
svm ARM: 2020-10-23 11:17:56 -07:00
vmx KVM: vmx: remove unused variable 2020-10-31 11:38:43 -04:00
cpuid.c kvm: x86: ensure pv_cpuid.features is initialized when enabling cap 2020-11-08 04:41:29 -05:00
cpuid.h kvm: x86: ensure pv_cpuid.features is initialized when enabling cap 2020-11-08 04:41:29 -05:00
debugfs.c KVM: let kvm_destroy_vm_debugfs clean up vCPU debugfs directories 2020-06-04 11:00:54 -04:00
emulate.c KVM: x86: report negative values from wrmsr emulation to userspace 2020-10-21 17:36:34 -04:00
hyperv.c ARM: 2020-10-23 11:17:56 -07:00
hyperv.h x86/kvm/hyper-v: Add support for synthetic debugger interface 2020-06-01 04:26:11 -04:00
i8254.c kvm: i8254: remove redundant assignment to pointer s 2020-06-11 12:35:18 -04:00
i8254.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i8259.c KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks 2020-01-27 19:59:37 +01:00
ioapic.c KVM: ioapic: break infinite recursion on lazy EOI 2020-10-24 04:42:06 -04:00
ioapic.h kvm/x86: Remove redundant function implementations 2020-05-27 13:11:10 -04:00
irq_comm.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
irq.c KVM: nSVM: extract svm_set_gif 2020-06-01 04:26:01 -04:00
irq.h kvm/x86: Remove redundant function implementations 2020-05-27 13:11:10 -04:00
Kconfig x86/kvm: hide KVM options from menuconfig when KVM is not compiled 2020-10-21 17:36:30 -04:00
kvm_cache_regs.h KVM: x86: Let the guest own CR4.FSGSBASE 2020-10-21 17:48:50 -04:00
kvm_emulate.h ARM: 2020-04-02 15:13:15 -07:00
lapic.c KVM: nVMX: Morph notification vector IRQ on nested VM-Enter to pending PI 2020-09-28 07:57:22 -04:00
lapic.h KVM: nVMX: Morph notification vector IRQ on nested VM-Enter to pending PI 2020-09-28 07:57:22 -04:00
Makefile kvm: x86/mmu: Init / Uninit the TDP MMU 2020-10-21 18:17:00 -04:00
mmu.h KVM: x86: Move illegal GPA helper out of the MMU code 2020-09-28 07:57:27 -04:00
mtrr.c KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks 2020-01-27 19:59:39 +01:00
pmu.c KVM/x86: pmu: Fix #GP condition check for RDPMC emulation 2020-07-09 07:08:37 -04:00
pmu.h kvm: x86: limit the maximum number of vPMU fixed counters to 3 2020-07-08 16:21:59 -04:00
trace.h KVM: x86: Use common definition for kvm_nested_vmexit tracepoint 2020-09-28 07:57:52 -04:00
tss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86.c KVM: x86: handle MSR_IA32_DEBUGCTLMSR with report_ignored_msrs 2020-11-08 04:41:31 -05:00
x86.h KVM: x86: use positive error values for msr emulation that causes #GP 2020-11-08 04:41:28 -05:00