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i386/pc: Add e820 entry for SGX EPC section(s) 

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>
This commit is contained in:
Sean Christopherson 2021-07-19 19:21:21 +08:00 committed by Paolo Bonzini
parent 0cf4ce00d2
commit 1ed1ccc5a4
1 changed files with 4 additions and 0 deletions
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4
hw/i386/pc.c
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@ -889,6 +889,10 @@ 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))) {