82e111cc2a
To work around various bugs running KVM enabled, copy page tables to DRAM in assembly before jumping to x86_64 mode. Tested on QEMU using KVM, no more stange bugs happen: Tested on host - CPU Intel(R) Core(TM) i7-7700HQ - Linux 5.9 - qemu 4.2.1 Used to crash on emulating MMX instructions and failed to translate some addresses using the virtual MMU when running in long mode. Tested on host - CPU AMD EPYC 7401P 24-Core Processor - Linux 5.4 - qemu 4.2.1 Used to crash on jumping to long mode. Change-Id: Ic0bdd2bef7197edd2e7488a8efdeba7eb4ab0dd4 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49228 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
97 lines
2.2 KiB
Plaintext
97 lines
2.2 KiB
Plaintext
if BOARD_EMULATION_QEMU_X86_Q35
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config BOARD_SPECIFIC_OPTIONS
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def_bool y
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select CPU_QEMU_X86
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select SOUTHBRIDGE_INTEL_I82801IX
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select IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS
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select HAVE_CMOS_DEFAULT
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select HAVE_OPTION_TABLE
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# select HAVE_PIRQ_TABLE
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select HAVE_ACPI_TABLES
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select BOARD_ROMSIZE_KB_2048 if !VBOOT
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select BOARD_ROMSIZE_KB_16384 if VBOOT
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select MAINBOARD_HAS_NATIVE_VGA_INIT
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select MAINBOARD_FORCE_NATIVE_VGA_INIT if !CHROMEOS
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select MAINBOARD_HAS_LPC_TPM
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select MAINBOARD_HAS_CHROMEOS
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config VBOOT
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select VBOOT_MUST_REQUEST_DISPLAY
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select VBOOT_STARTS_IN_BOOTBLOCK
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select VBOOT_SEPARATE_VERSTAGE
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select VBOOT_VBNV_CMOS
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select VBOOT_NO_BOARD_SUPPORT if !CHROMEOS
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select GBB_FLAG_DISABLE_LID_SHUTDOWN
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select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
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select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
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select GBB_FLAG_DISABLE_FWMP
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config FMDFILE
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string
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default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa-16M.fmd" if VBOOT_SLOTS_RW_A && !VBOOT_SLOTS_RW_AB
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default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab-16M.fmd" if VBOOT_SLOTS_RW_AB
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if ARCH_BOOTBLOCK_X86_64
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# Need to install page tables in DRAM as the virtual MMU has problems translating paging
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# request when the page table resides in emulated ROM. This causes undefined behaviour
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# when handling data requests, as well as fetching and decoding instructions
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# Real hardware didn't show any problems until now.
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config ARCH_X86_64_PGTBL_LOC
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default 0x8000
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endif
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if VBOOT
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config VBOOT_SLOTS_RW_A
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default y
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endif
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config VBOOT_VBNV_OFFSET
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hex
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default 0x2c
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config MAINBOARD_DIR
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string
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default "emulation/qemu-q35"
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config MAINBOARD_PART_NUMBER
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string
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default "QEMU x86 q35/ich9"
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config MMCONF_BASE_ADDRESS
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hex
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default 0xb0000000
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# fw_cfg tables can be larger than the default when TPM is enabled
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config MAX_ACPI_TABLE_SIZE_KB
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int
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default 224
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# Skip the first 64KiB as coreboot table pointer is installed
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# at address 0
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config DCACHE_RAM_BASE
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hex
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default 0x10000
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# Memory at 0xa0000 decodes to VGA
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config DCACHE_RAM_SIZE
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hex
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default 0x90000
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# Do not show IFD/blob options since QEMU doesn't care
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config HAVE_INTEL_FIRMWARE
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bool
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default n
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config C_ENV_BOOTBLOCK_SIZE
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hex
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default 0x4000
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config DCACHE_BSP_STACK_SIZE
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hex
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default 0x4000
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endif # BOARD_EMULATION_QEMU_X86_Q35
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