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Paolo Bonzini 6702514814 target/i386: check for availability of MSR_IA32_UCODE_REV as an emulated MSR 
Even though MSR_IA32_UCODE_REV has been available long before Linux 5.6,
which added it to the emulated MSR list, a bug caused the microcode
version to revert to 0x100000000 on INIT.  As a result, processors other
than the bootstrap processor would not see the host microcode revision;
some Windows version complain loudly about this and crash with a
fairly explicit MICROCODE REVISION MISMATCH error.

[If running 5.6 prereleases, the kernel fix "KVM: x86: do not reset
 microcode version on INIT or RESET" should also be applied.]

Reported-by: Alex Williamson <alex.williamson@redhat.com>
Message-id: <20200211175516.10716-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-12 16:29:40 +01:00
..
alpha tcg: Search includes from the project root source directory 2020-01-15 15:13:10 -10:00
arm target/arm: fix TCG leak for fcvt half->double 2020-01-31 16:53:13 +00:00
cris cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
hppa target/hppa: Allow, but diagnose, LDCW aligned only mod 4 2020-01-27 10:49:51 -08:00
i386 target/i386: check for availability of MSR_IA32_UCODE_REV as an emulated MSR 2020-02-12 16:29:40 +01:00
lm32 cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
m68k cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
microblaze qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
mips target/mips: Separate FPU-related helpers into their own file 2020-02-04 08:53:54 +01:00
moxie cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
nios2 qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
openrisc cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
ppc target/ppc: Use probe_write for DCBZ 2020-02-03 11:33:11 +11:00
riscv * Register qdev properties as class properties (Marc-André) 2020-01-27 09:44:04 +00:00
s390x s390x: sigp: Fix sense running reporting 2020-01-27 12:13:10 +01:00
sh4 cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
sparc qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
tilegx cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
tricore cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00
unicore32 tcg: Search includes from the project root source directory 2020-01-15 15:13:10 -10:00
xtensa cpu: Use cpu_class_set_parent_reset() 2020-01-24 20:59:06 +01:00