diff options
| author | Avadhut Naik <avadhut.naik@amd.com> | 2025-11-18 19:15:03 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-11-21 10:32:28 +0100 |
| commit | 821f5fe4dbcb82357f0dfcfca3dd98f2b4097e53 (patch) | |
| tree | 8808e97246091ef22bd5279fd206ae2d0e6ae9a9 /drivers/pci/controller/dwc/pcie-qcom-common.c | |
| parent | eeb3f76d73baed4c8ecc883e1eaafba3cb8aae1d (diff) | |
x86/mce: Add support for physical address valid bit
Starting with Zen6, AMD's Scalable MCA systems will incorporate two new bits in
MCA_STATUS and MCA_CONFIG MSRs. These bits will indicate if a valid System
Physical Address (SPA) is present in MCA_ADDR.
PhysAddrValidSupported bit (MCA_CONFIG[11]) serves as the architectural
indicator and states if PhysAddrV bit (MCA_STATUS[54]) is Reserved or if it
indicates validity of SPA in MCA_ADDR.
PhysAddrV bit (MCA_STATUS[54]) advertises if MCA_ADDR contains valid SPA or if
it is implementation specific.
Use and prefer MCA_STATUS[PhysAddrV] when checking for a usable address.
Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20251118191731.181269-1-avadhut.naik@amd.com
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-qcom-common.c')
0 files changed, 0 insertions, 0 deletions