From 5125f9cd2532f0aca25d966ecd27d0e30d4af7c9 Mon Sep 17 00:00:00 2001 From: Pavel Fedin Date: Mon, 7 Sep 2015 10:39:29 +0100 Subject: hw/arm/virt: Add high MMIO PCI region, 512G in size This large region is necessary for some devices like ivshmem and video cards 32-bit kernels can be built without LPAE support. In this case such a kernel will not be able to use PCI controller which has windows in high addresses. In order to work around the problem, "highmem" option is introduced. It defaults to on on, but can be manually set to off in order to be able to run those old 32-bit guests. Signed-off-by: Pavel Fedin Reviewed-by: Alexander Graf Reviewed-by: Igor Mammedov Reviewed-by: Shannon Zhao [PMM: Added missing ULL suffixes and a comment to the a15memmap[] entry] Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- include/hw/arm/virt-acpi-build.h | 1 + include/hw/arm/virt.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include') diff --git a/include/hw/arm/virt-acpi-build.h b/include/hw/arm/virt-acpi-build.h index 04f174d..19b68a4 100644 --- a/include/hw/arm/virt-acpi-build.h +++ b/include/hw/arm/virt-acpi-build.h @@ -31,6 +31,7 @@ typedef struct VirtGuestInfo { FWCfgState *fw_cfg; const MemMapEntry *memmap; const int *irqmap; + bool use_highmem; } VirtGuestInfo; diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index d22fd8e..808753f 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -56,6 +56,7 @@ enum { VIRT_PCIE_ECAM, VIRT_GIC_V2M, VIRT_PLATFORM_BUS, + VIRT_PCIE_MMIO_HIGH, }; typedef struct MemMapEntry { -- cgit v1.1