mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-30 21:46:31 +00:00
6de4f3ada4
Instead of reloading the pdptrs on every entry and exit (vmcs writes on vmx, guest memory access on svm) extract them on demand. Signed-off-by: Avi Kivity <avi@redhat.com>
42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
#ifndef ASM_KVM_CACHE_REGS_H
|
|
#define ASM_KVM_CACHE_REGS_H
|
|
|
|
static inline unsigned long kvm_register_read(struct kvm_vcpu *vcpu,
|
|
enum kvm_reg reg)
|
|
{
|
|
if (!test_bit(reg, (unsigned long *)&vcpu->arch.regs_avail))
|
|
kvm_x86_ops->cache_reg(vcpu, reg);
|
|
|
|
return vcpu->arch.regs[reg];
|
|
}
|
|
|
|
static inline void kvm_register_write(struct kvm_vcpu *vcpu,
|
|
enum kvm_reg reg,
|
|
unsigned long val)
|
|
{
|
|
vcpu->arch.regs[reg] = val;
|
|
__set_bit(reg, (unsigned long *)&vcpu->arch.regs_dirty);
|
|
__set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);
|
|
}
|
|
|
|
static inline unsigned long kvm_rip_read(struct kvm_vcpu *vcpu)
|
|
{
|
|
return kvm_register_read(vcpu, VCPU_REGS_RIP);
|
|
}
|
|
|
|
static inline void kvm_rip_write(struct kvm_vcpu *vcpu, unsigned long val)
|
|
{
|
|
kvm_register_write(vcpu, VCPU_REGS_RIP, val);
|
|
}
|
|
|
|
static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index)
|
|
{
|
|
if (!test_bit(VCPU_EXREG_PDPTR,
|
|
(unsigned long *)&vcpu->arch.regs_avail))
|
|
kvm_x86_ops->cache_reg(vcpu, VCPU_EXREG_PDPTR);
|
|
|
|
return vcpu->arch.pdptrs[index];
|
|
}
|
|
|
|
#endif
|