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thermosphere: also trap GICH (to deny access)

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This commit is contained in:
TuxSH
2019-08-14 15:48:07 +02:00
parent bb1ba5308d
commit 9787bca325
3 changed files with 12 additions and 6 deletions
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5
thermosphere/src/platform/qemu/memory_map.c
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@@ -72,8 +72,9 @@ uintptr_t configureStage2MemoryMap(u32 *addrSpaceSize)
identityMapL3(g_vttbl_l3_0, 0x08000000ull, BITL(21), unchanged);
// GICD -> trapped, GICv2 CPU -> vCPU interface
mmu_unmap_range(3, g_vttbl_l3_0, 0x08000000, 0x10000ull);
// GICD -> trapped, GICv2 CPU -> vCPU interface, GICH -> trapped (deny access)
mmu_unmap_range(3, g_vttbl_l3_0, 0x08000000ull, 0x10000ull);
mmu_unmap_range(3, g_vttbl_l3_0, 0x08030000ull, 0x10000ull);
mmu_map_page_range(g_vttbl_l3_0, 0x08010000ull, 0x08040000ull, 0x10000ull, devattrs);
}

4
thermosphere/src/platform/tegra/memory_map.c
View File

@@ -71,8 +71,10 @@ uintptr_t configureStage2MemoryMap(u32 *addrSpaceSize)
identityMapL3(g_vttbl_l3_0, 0x00000000ull, BITL(21), unchanged);
// GICD -> trapped, GICv2 CPU -> vCPU interface
// GICD -> trapped, GICv2 CPU -> vCPU interface, GICH -> trapped (access denied including for the unused view)
mmu_unmap_page(g_vttbl_l3_0, 0x50401000ull);
mmu_unmap_page(g_vttbl_l3_0, 0x50404000ull);
mmu_unmap_page(g_vttbl_l3_0, 0x50405000ull);
mmu_map_page_range(g_vttbl_l3_0, 0x50042000ull, 0x50046000ull, 0x2000ull, devattrs);
}