haraldwolff/qemu-patch-raspberry4
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fix CPUID vendor override

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the meaning of vendor_override is actually the opposite of how it
is currently used :-(
Fix it to allow KVM to export the non-native CPUID vendor if
explicitly requested by the user.

The intended behavior is:
With TCG:
  - always inject the configured vendor (either hard-coded, in config
    files or via ",vendor=" commandline)
With KVM:
  - by default inject the host's vendor
  - if the user specifies ",vendor=" on the commandline, use this
    instead of the host's vendor
  - all pre-configured vendors (hard-coded, config file) are ignored

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Andre Przywara 2010-06-02 11:57:47 +02:00 committed by Marcelo Tosatti
parent be41cbe036
commit 8935499831
1 changed files with 1 additions and 1 deletions
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2
target-i386/cpuid.c
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@ -982,7 +982,7 @@ static void get_cpuid_vendor(CPUX86State *env, uint32_t *ebx,
* this if you want to use KVM's sysenter/syscall emulation
* in compatibility mode and when doing cross vendor migration
*/
if (kvm_enabled() && env->cpuid_vendor_override) {
if (kvm_enabled() && ! env->cpuid_vendor_override) {
host_cpuid(0, 0, NULL, ebx, ecx, edx);
}
}