From: Tianyu Lan <tiala@xxxxxxxxxxxxx>
This patchset is to add AMD sev-snp enlightened guest
support on hyperv. Hyperv uses Linux direct boot mode
to boot up Linux kernel and so it needs to pvalidate
system memory by itself.
In hyperv case, there is no boot loader and so cc blob
is prepared by hypervisor. In this series, hypervisor
set the cc blob address directly into boot parameter
of Linux kernel. If the magic number on cc blob address
is valid, kernel will read cc blob.
Shared memory between guests and hypervisor should be
decrypted and zero memory after decrypt memory. The data
in the target address. It maybe smearedto avoid smearing
data.
Introduce #HV exception support in AMD sev snp code and
#HV handler.
Change since v1:
- Remove boot param changes for cc blob address and
use setup head to pass cc blob info
- Remove unnessary WARN and BUG check
- Add system vector table map in the #HV exception
- Fix interrupt exit issue when use #HV exception
Ashish Kalra (2):
x86/sev: optimize system vector processing invoked from #HV exception
x86/sev: Fix interrupt exit code paths from #HV exception
Tianyu Lan (16):
x86/sev: Pvalidate memory gab for decompressing kernel
x86/hyperv: Add sev-snp enlightened guest specific config
x86/hyperv: apic change for sev-snp enlightened guest
x86/hyperv: Decrypt hv vp assist page in sev-snp enlightened guest
x86/hyperv: Get Virtual Trust Level via hvcall
x86/hyperv: Use vmmcall to implement hvcall in sev-snp enlightened
guest
clocksource: hyper-v: decrypt hyperv tsc page in sev-snp enlightened
guest
x86/hyperv: decrypt vmbus pages for sev-snp enlightened guest
x86/hyperv: set target vtl in the vmbus init message
drivers: hv: Decrypt percpu hvcall input arg page in sev-snp
enlightened guest
Drivers: hv: vmbus: Decrypt vmbus ring buffer
x86/hyperv: Initialize cpu and memory for sev-snp enlightened guest
x86/hyperv: Add smp support for sev-snp guest
x86/hyperv: Add hyperv-specific hadling for VMMCALL under SEV-ES
x86/sev: Add a #HV exception handler
x86/sev: Initialize #HV doorbell and handle interrupt requests
arch/x86/boot/compressed/head_64.S | 8 +
arch/x86/boot/compressed/sev.c | 84 ++++++
arch/x86/entry/entry_64.S | 82 +++++
arch/x86/hyperv/hv_apic.c | 79 +++--
arch/x86/hyperv/hv_init.c | 47 +++
arch/x86/hyperv/ivm.c | 12 +-
arch/x86/include/asm/cpu_entry_area.h | 6 +
arch/x86/include/asm/idtentry.h | 107 ++++++-
arch/x86/include/asm/irqflags.h | 19 ++
arch/x86/include/asm/mem_encrypt.h | 2 +
arch/x86/include/asm/mshyperv.h | 68 +++--
arch/x86/include/asm/msr-index.h | 6 +
arch/x86/include/asm/page_64_types.h | 1 +
arch/x86/include/asm/sev.h | 13 +
arch/x86/include/asm/svm.h | 55 +++-
arch/x86/include/asm/trapnr.h | 1 +
arch/x86/include/asm/traps.h | 1 +
arch/x86/include/uapi/asm/svm.h | 4 +
arch/x86/kernel/cpu/common.c | 1 +
arch/x86/kernel/cpu/mshyperv.c | 267 ++++++++++++++++-
arch/x86/kernel/dumpstack_64.c | 9 +-
arch/x86/kernel/idt.c | 1 +
arch/x86/kernel/sev.c | 412 ++++++++++++++++++++++----
arch/x86/kernel/traps.c | 50 ++++
arch/x86/kernel/vmlinux.lds.S | 7 +
arch/x86/mm/cpu_entry_area.c | 2 +
drivers/clocksource/hyperv_timer.c | 2 +-
drivers/hv/connection.c | 14 +
drivers/hv/hv.c | 32 +-
drivers/hv/hv_common.c | 22 ++
drivers/hv/ring_buffer.c | 7 +-
include/asm-generic/hyperv-tlfs.h | 19 ++
include/asm-generic/mshyperv.h | 2 +
include/linux/hyperv.h | 4 +-
34 files changed, 1340 insertions(+), 106 deletions(-)
--
2.25.1
