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[PATCH v1 28/40] i386/tdx: Add TDVF memory via KVM_TDX_INIT_MEM_REGION
From: |
Xiaoyao Li |
Subject: |
[PATCH v1 28/40] i386/tdx: Add TDVF memory via KVM_TDX_INIT_MEM_REGION |
Date: |
Tue, 2 Aug 2022 15:47:38 +0800 |
From: Isaku Yamahata <isaku.yamahata@intel.com>
TDVF firmware (CODE and VARS) needs to be added/copied to TD's private
memory via KVM_TDX_INIT_MEM_REGION, as well as TD HOB and TEMP memory.
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
---
Changes from RFC v4:
- rename variable @metadata to @flags
---
target/i386/kvm/tdx.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index 944f2f5b6921..d0bbe06f5504 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -575,6 +575,7 @@ static void tdx_finalize_vm(Notifier *notifier, void
*unused)
{
TdxFirmware *tdvf = &tdx_guest->tdvf;
TdxFirmwareEntry *entry;
+ int r;
tdx_init_ram_entries();
@@ -600,6 +601,29 @@ static void tdx_finalize_vm(Notifier *notifier, void
*unused)
sizeof(TdxRamEntry), &tdx_ram_entry_compare);
tdvf_hob_create(tdx_guest, tdx_get_hob_entry(tdx_guest));
+
+ for_each_tdx_fw_entry(tdvf, entry) {
+ struct kvm_tdx_init_mem_region mem_region = {
+ .source_addr = (__u64)entry->mem_ptr,
+ .gpa = entry->address,
+ .nr_pages = entry->size / 4096,
+ };
+
+ __u32 flags = entry->attributes & TDVF_SECTION_ATTRIBUTES_MR_EXTEND ?
+ KVM_TDX_MEASURE_MEMORY_REGION : 0;
+
+ r = tdx_vm_ioctl(KVM_TDX_INIT_MEM_REGION, flags, &mem_region);
+ if (r < 0) {
+ error_report("KVM_TDX_INIT_MEM_REGION failed %s", strerror(-r));
+ exit(1);
+ }
+
+ if (entry->type == TDVF_SECTION_TYPE_TD_HOB ||
+ entry->type == TDVF_SECTION_TYPE_TEMP_MEM) {
+ qemu_ram_munmap(-1, entry->mem_ptr, entry->size);
+ entry->mem_ptr = NULL;
+ }
+ }
}
static Notifier tdx_machine_done_notify = {
--
2.27.0
- Re: [PATCH v1 20/40] i386/tdvf: Introduce function to parse TDVF metadata, (continued)
- [PATCH v1 22/40] i386/tdx: Skip BIOS shadowing setup, Xiaoyao Li, 2022/08/02
- [PATCH v1 21/40] i386/tdx: Parse TDVF metadata for TDX VM, Xiaoyao Li, 2022/08/02
- [PATCH v1 26/40] headers: Add definitions from UEFI spec for volumes, resources, etc..., Xiaoyao Li, 2022/08/02
- [PATCH v1 27/40] i386/tdx: Setup the TD HOB list, Xiaoyao Li, 2022/08/02
- [PATCH v1 31/40] i386/tdx: Disable SMM for TDX VMs, Xiaoyao Li, 2022/08/02
- [PATCH v1 32/40] i386/tdx: Disable PIC for TDX VMs, Xiaoyao Li, 2022/08/02
- [PATCH v1 28/40] i386/tdx: Add TDVF memory via KVM_TDX_INIT_MEM_REGION,
Xiaoyao Li <=
- [PATCH v1 25/40] i386/tdx: Track RAM entries for TDX VM, Xiaoyao Li, 2022/08/02
- [PATCH v1 23/40] i386/tdx: Don't initialize pc.rom for TDX VMs, Xiaoyao Li, 2022/08/02
- [PATCH v1 33/40] i386/tdx: Don't allow system reset for TDX VMs, Xiaoyao Li, 2022/08/02
- [PATCH v1 29/40] i386/tdx: Call KVM_TDX_INIT_VCPU to initialize TDX vcpu, Xiaoyao Li, 2022/08/02
- [PATCH v1 30/40] i386/tdx: Finalize TDX VM, Xiaoyao Li, 2022/08/02
- [PATCH v1 24/40] i386/tdx: Track mem_ptr for each firmware entry of TDVF, Xiaoyao Li, 2022/08/02
- [PATCH v1 34/40] hw/i386: add eoi_intercept_unsupported member to X86MachineState, Xiaoyao Li, 2022/08/02
- [PATCH v1 36/40] i386/tdx: Don't synchronize guest tsc for TDs, Xiaoyao Li, 2022/08/02