Tianyu Lan 49d6a3c062 x86/Hyper-V: Add SEV negotiate protocol support in Isolation VM ...

Hyper-V Isolation VM current code uses sev_es_ghcb_hv_call()
to read/write MSR via GHCB page and depends on the sev code.
This may cause regression when sev code changes interface
design.

The latest SEV-ES code requires to negotiate GHCB version before
reading/writing MSR via GHCB page and sev_es_ghcb_hv_call() doesn't
work for Hyper-V Isolation VM. Add Hyper-V ghcb related implementation
to decouple SEV and Hyper-V code. Negotiate GHCB version in the
hyperv_init() and use the version to communicate with Hyper-V
in the ghcb hv call function.

Fixes: 2ea29c5abb ("x86/sev: Save the negotiated GHCB version")
Signed-off-by: Tianyu Lan <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>

2022-06-15 18:27:40 +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/Hyper-V: Add SEV negotiate protocol support in Isolation VM

2022-06-15 18:27:40 +00:00

hv_proc.c

…

hv_spinlock.c

…

irqdomain.c

x86/hyperv: Refactor hv_msi_domain_free_irqs()

2021-12-09 11:52:21 +01:00

ivm.c

x86/Hyper-V: Add SEV negotiate protocol support in Isolation VM

2022-06-15 18:27:40 +00:00

Makefile

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

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

mmu.c

x86/hyperv: Properly deal with empty cpumasks in hyperv_flush_tlb_multi()

2022-01-10 11:50:20 +00:00

nested.c

…