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 <Tianyu.Lan@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20220614014553.1915929-1-ltykernel@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org>		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	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	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	drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status	2021-04-21 09:49:19 +00:00