diff options
| author |   Dexuan Cui <decui@microsoft.com> | 2023-08-24 01:07:03 -0700 |
|---|---|---|
| committer |   Wei Liu <wei.liu@kernel.org> | 2023-08-25 00:04:56 +0000 |
| commit | 08e9d12077fcc7c4c4579d7dcd8093b59b01369e (patch) | |
| tree | 95784ca8040bc7c12a548bd874c51234ac32e11f /drivers/hv | |
| parent | x86/hyperv: Fix undefined reference to isolation_type_en_snp without CONFIG_HYPERV (diff) | |
| download | wireguard-linux-08e9d12077fcc7c4c4579d7dcd8093b59b01369e.tar.xz wireguard-linux-08e9d12077fcc7c4c4579d7dcd8093b59b01369e.zip | |
x86/hyperv: Add hv_isolation_type_tdx() to detect TDX guests
No logic change to SNP/VBS guests.
hv_isolation_type_tdx() will be used to instruct a TDX guest on Hyper-V to
do some TDX-specific operations, e.g. for a fully enlightened TDX guest
(i.e. without the paravisor), hv_do_hypercall() should use
__tdx_hypercall() and such a guest on Hyper-V should handle the Hyper-V
Event/Message/Monitor pages specially.
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Tianyu Lan <tiala@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20230824080712.30327-2-decui@microsoft.com
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hv_common.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c index 2d43ba2bc925..da3307533f4d 100644 --- a/drivers/hv/hv_common.c +++ b/drivers/hv/hv_common.c @@ -521,6 +521,12 @@ bool __weak hv_isolation_type_en_snp(void) } EXPORT_SYMBOL_GPL(hv_isolation_type_en_snp); +bool __weak hv_isolation_type_tdx(void) +{ + return false; +} +EXPORT_SYMBOL_GPL(hv_isolation_type_tdx); + void __weak hv_setup_vmbus_handler(void (*handler)(void)) { } |