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thermosphere: also trap GICH (to deny access)

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TuxSH committed 2020-02-04 19:12:19 +00:00
1 parent bb1ba5308d
commit 9787bca325
3 files changed
+12 -6
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thermosphere/src/platform/qemu/memory_map.c
+3 -2
View File
@@ -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);
}
thermosphere/src/platform/tegra/memory_map.c
+3 -1
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);
}