From 1bf5eb12ff86ff72f837a79ea186d4391edd4214 Mon Sep 17 00:00:00 2001 From: Alexander Potapenko Date: Mon, 13 Oct 2025 15:05:46 +0200 Subject: executor: rework GDT setup for SYZOS Untangle SYZOS GDT setup from the legacy one. Drop LDT and TSS for now. --- executor/kvm.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'executor/kvm.h') diff --git a/executor/kvm.h b/executor/kvm.h index 28391db57..57d8aa490 100644 --- a/executor/kvm.h +++ b/executor/kvm.h @@ -51,6 +51,7 @@ #define X86_SYZOS_ADDR_PT_UNUSED_MEM 0x7000 // IOAPIC PT for GPAs 0xfed00000 - 0xfedfffff. #define X86_SYZOS_ADDR_PT_IOAPIC 0x9000 +#define X86_SYZOS_ADDR_VAR_IDT 0x10000 #define X86_SYZOS_ADDR_SMRAM 0x30000 // Write to this page to trigger a page fault and stop KVM_RUN. @@ -66,6 +67,10 @@ #define X86_SYZOS_ADDR_UNUSED 0x200000 #define X86_SYZOS_ADDR_IOAPIC 0xfec00000 +// SYZOS segment selectors +#define X86_SYZOS_SEL_CODE 0x8 +#define X86_SYZOS_SEL_DATA 0x10 + #define X86_CR0_PE 1ULL #define X86_CR0_MP (1ULL << 1) #define X86_CR0_EM (1ULL << 2) -- cgit mrf-deployment