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authorLinus Torvalds <torvalds@linux-foundation.org>2023-04-25 20:48:08 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-04-25 20:48:08 +0300
commitbc1bb2a49bae915107fd58705edb1e32db92c635 (patch)
tree2b517448e60c76160452349ea14766ae309dfba0 /include/asm-generic
parentc42b59bfaa0091833b6758be772c54ec7183daa5 (diff)
parent812b0597fb4043240724e4c7bed7ba1fe15c0e3f (diff)
downloadlinux-bc1bb2a49bae915107fd58705edb1e32db92c635.tar.xz
Merge tag 'x86_sev_for_v6.4_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov: - Add the necessary glue so that the kernel can run as a confidential SEV-SNP vTOM guest on Hyper-V. A vTOM guest basically splits the address space in two parts: encrypted and unencrypted. The use case being running unmodified guests on the Hyper-V confidential computing hypervisor - Double-buffer messages between the guest and the hardware PSP device so that no partial buffers are copied back'n'forth and thus potential message integrity and leak attacks are possible - Name the return value the sev-guest driver returns when the hw PSP device hasn't been called, explicitly - Cleanups * tag 'x86_sev_for_v6.4_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/hyperv: Change vTOM handling to use standard coco mechanisms init: Call mem_encrypt_init() after Hyper-V hypercall init is done x86/mm: Handle decryption/re-encryption of bss_decrypted consistently Drivers: hv: Explicitly request decrypted in vmap_pfn() calls x86/hyperv: Reorder code to facilitate future work x86/ioremap: Add hypervisor callback for private MMIO mapping in coco VM x86/sev: Change snp_guest_issue_request()'s fw_err argument virt/coco/sev-guest: Double-buffer messages crypto: ccp: Get rid of __sev_platform_init_locked()'s local function pointer crypto: ccp - Name -1 return value as SEV_RET_NO_FW_CALL
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/mshyperv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
index 8845a2eca339..90d7f68ed39d 100644
--- a/include/asm-generic/mshyperv.h
+++ b/include/asm-generic/mshyperv.h
@@ -26,6 +26,8 @@
#include <asm/ptrace.h>
#include <asm/hyperv-tlfs.h>
+#define VTPM_BASE_ADDRESS 0xfed40000
+
struct ms_hyperv_info {
u32 features;
u32 priv_high;