![Joerg Roedel](/assets/img/avatar_default.png)
This patch changes the kvm-amd module to allocate the SVM MSR permission map per VCPU instead of a global map for all VCPUs. With this we have more flexibility allowing specific guests to access virtualized MSRs. This is required for LBR virtualization. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Markus Rechberger <markus.rechberger@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
48 lines
923 B
C
48 lines
923 B
C
#ifndef __KVM_SVM_H
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#define __KVM_SVM_H
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/kvm_host.h>
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#include <asm/msr.h>
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#include "svm.h"
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static const u32 host_save_user_msrs[] = {
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#ifdef CONFIG_X86_64
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MSR_STAR, MSR_LSTAR, MSR_CSTAR, MSR_SYSCALL_MASK, MSR_KERNEL_GS_BASE,
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MSR_FS_BASE,
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#endif
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MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
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};
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#define NR_HOST_SAVE_USER_MSRS ARRAY_SIZE(host_save_user_msrs)
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#define NUM_DB_REGS 4
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struct kvm_vcpu;
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struct vcpu_svm {
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struct kvm_vcpu vcpu;
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struct vmcb *vmcb;
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unsigned long vmcb_pa;
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struct svm_cpu_data *svm_data;
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uint64_t asid_generation;
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unsigned long db_regs[NUM_DB_REGS];
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u64 next_rip;
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u64 host_user_msrs[NR_HOST_SAVE_USER_MSRS];
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u64 host_gs_base;
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unsigned long host_cr2;
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unsigned long host_db_regs[NUM_DB_REGS];
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unsigned long host_dr6;
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unsigned long host_dr7;
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u32 *msrpm;
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};
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#endif
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