diff options
| author | Roman Bolshakov <r.bolshakov@yadro.com> | 2020-06-30 13:28:21 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-07-10 18:02:19 -0400 |
| commit | 82695a1b9c696aaea491e932548f9787adb7d78b (patch) | |
| tree | b26fc571be21f99a6340ad2a1445215a9f1dfad9 /target/i386/hvf/hvf.c | |
| parent | a4e26fa8583a215aa61107a623bfa25afd09a860 (diff) | |
| download | qemu-82695a1b9c696aaea491e932548f9787adb7d78b.zip | |
i386: hvf: Move Guest LMA reset to macvm_set_cr0()
The only useful purpose of hvf_reset_vcpu() is to clear "IA-32e mode
guest" (LMA) VM-Entry control. But it can be moved to macvm_set_cr0()
which is indirectly used by post-init and post-reset to flush emulator
state. That enables clean removal of hvf_reset_vcpu().
LMA is set only if IA32_EFER.LME = 1, according to Intel SDM "9.8.5
Initializing IA-32e Mode" and "9.8.5.4 Switching Out of IA-32e Mode
Operation", otherwise the entry control can be safely cleared.
Cc: Cameron Esfahani <dirty@apple.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200630102824.77604-7-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/hvf/hvf.c')
| -rw-r--r-- | target/i386/hvf/hvf.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c index efe9802962..31980f9076 100644 --- a/target/i386/hvf/hvf.c +++ b/target/i386/hvf/hvf.c @@ -459,7 +459,6 @@ void hvf_reset_vcpu(CPUState *cpu) { /* TODO: this shouldn't be needed; there is already a call to * cpu_synchronize_all_post_reset in vl.c */ - wvmcs(cpu->hvf_fd, VMCS_ENTRY_CTLS, 0); wvmcs(cpu->hvf_fd, VMCS_GUEST_IA32_EFER, 0); /* Initialize PDPTE */ |