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[PULL 26/36] i386/pc: Add e820 entry for SGX EPC section(s)
From: |
Paolo Bonzini |
Subject: |
[PULL 26/36] i386/pc: Add e820 entry for SGX EPC section(s) |
Date: |
Mon, 6 Sep 2021 15:10:49 +0200 |
From: Sean Christopherson <sean.j.christopherson@intel.com>
Note that SGX EPC is currently guaranteed to reside in a single
contiguous chunk of memory regardless of the number of EPC sections.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20210719112136.57018-19-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/i386/pc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index f79be3edc2..b55cd27deb 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -892,6 +892,10 @@ void pc_memory_init(PCMachineState *pcms,
e820_add_entry(0x100000000ULL, x86ms->above_4g_mem_size, E820_RAM);
}
+ if (pcms->sgx_epc.size != 0) {
+ e820_add_entry(pcms->sgx_epc.base, pcms->sgx_epc.size, E820_RESERVED);
+ }
+
if (!pcmc->has_reserved_memory &&
(machine->ram_slots ||
(machine->maxram_size > machine->ram_size))) {
--
2.31.1
- [PULL 22/36] i386: Propagate SGX CPUID sub-leafs to KVM, (continued)
- [PULL 22/36] i386: Propagate SGX CPUID sub-leafs to KVM, Paolo Bonzini, 2021/09/06
- [PULL 24/36] hw/i386/fw_cfg: Set SGX bits in feature control fw_cfg accordingly, Paolo Bonzini, 2021/09/06
- [PULL 13/36] vl: Add sgx compound properties to expose SGX EPC sections to guest, Paolo Bonzini, 2021/09/06
- [PULL 11/36] qom: Add memory-backend-epc ObjectOptions support, Paolo Bonzini, 2021/09/06
- [PULL 18/36] i386: Add get/set/migrate support for SGX_LEPUBKEYHASH MSRs, Paolo Bonzini, 2021/09/06
- [PULL 21/36] i386: kvm: Add support for exposing PROVISIONKEY to guest, Paolo Bonzini, 2021/09/06
- [PULL 23/36] Adjust min CPUID level to 0x12 when SGX is enabled, Paolo Bonzini, 2021/09/06
- [PULL 25/36] hw/i386/pc: Account for SGX EPC sections when calculating device memory, Paolo Bonzini, 2021/09/06
- [PULL 28/36] q35: Add support for SGX EPC, Paolo Bonzini, 2021/09/06
- [PULL 27/36] i386: acpi: Add SGX EPC entry to ACPI tables, Paolo Bonzini, 2021/09/06
- [PULL 26/36] i386/pc: Add e820 entry for SGX EPC section(s),
Paolo Bonzini <=
- [PULL 29/36] i440fx: Add support for SGX EPC, Paolo Bonzini, 2021/09/06
- [PULL 31/36] sgx-epc: Add the reset interface for sgx-epc virt device, Paolo Bonzini, 2021/09/06
- [PULL 30/36] hostmem-epc: Add the reset interface for EPC backend reset, Paolo Bonzini, 2021/09/06
- [PULL 32/36] sgx-epc: Avoid bios reset during sgx epc initialization, Paolo Bonzini, 2021/09/06
- [PULL 33/36] hostmem-epc: Make prealloc consistent with qemu cmdline during reset, Paolo Bonzini, 2021/09/06
- [PULL 35/36] sgx-epc: Add the fill_device_info() callback support, Paolo Bonzini, 2021/09/06
- [PULL 34/36] Kconfig: Add CONFIG_SGX support, Paolo Bonzini, 2021/09/06
- [PULL 36/36] doc: Add the SGX doc, Paolo Bonzini, 2021/09/06
- Re: [PULL 00/36] (Mostly) x86 changes for 2021-09-06, Peter Maydell, 2021/09/06