Sean Christopherson f3e613e72f x86/hyperv: Move required MSRs check to initial platform probing ...

Explicitly check for MSR_HYPERCALL and MSR_VP_INDEX support when probing
for running as a Hyper-V guest instead of waiting until hyperv_init() to
detect the bogus configuration.  Add messages to give the admin a heads
up that they are likely running on a broken virtual machine setup.

At best, silently disabling Hyper-V is confusing and difficult to debug,
e.g. the kernel _says_ it's using all these fancy Hyper-V features, but
always falls back to the native versions.  At worst, the half baked setup
will crash/hang the kernel.

Reviewed-by: Vitaly Kuznetsov <[email protected]>
Signed-off-by: Sean Christopherson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>

2021-11-15 12:37:08 +00:00

..

hv_apic.c

x86/hyperv: Avoid erroneously sending IPI to 'self'

2021-10-06 15:56:45 +00:00

hv_init.c

x86/hyperv: Move required MSRs check to initial platform probing

2021-11-15 12:37:08 +00:00

hv_proc.c

drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status

2021-04-21 09:49:19 +00:00

hv_spinlock.c

x86/hyperv: Fix unused variable 'msr_val' warning in hv_qlock_wait

2021-03-24 11:31:04 +00:00

irqdomain.c

drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status

2021-04-21 09:49:19 +00:00

ivm.c

x86/hyperv: Remove duplicate include

2021-10-28 11:36:34 +00:00

Makefile

x86/hyperv: Add new hvcall guest address host visibility support

2021-10-28 11:21:33 +00:00

mmu.c

Merge tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-04-29 11:41:43 -07:00

nested.c

drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status

2021-04-21 09:49:19 +00:00