mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
3c4b4e383e
qemu/target-arm/kvm-consts.h

102 lines
3.8 KiB
C
Raw Normal View History

target-arm: Provide mechanism for getting KVM constants even if not CONFIG_KVM There are a number of places where it would be convenient for ARM code to have working definitions of KVM constants even in code which is compiled with CONFIG_KVM not set. In this situation we can't simply include the kernel KVM headers (which might conflict with host header definitions or not even compile on the compiler we're using) so we have to redefine equivalent constants. Provide a mechanism for doing this and checking that the values match, and use it for the constants we're currently exposing via an ad-hoc mechanism. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-2-git-send-email-peter.maydell@linaro.org
2013-11-22 21:17:08 +04:00
/*
* KVM ARM ABI constant definitions
*
* Copyright (c) 2013 Linaro Limited
*
* Provide versions of KVM constant defines that can be used even
* when CONFIG_KVM is not set and we don't have access to the
* KVM headers. If CONFIG_KVM is set, we do a compile-time check
* that we haven't got out of sync somehow.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef ARM_KVM_CONSTS_H
#define ARM_KVM_CONSTS_H
#ifdef CONFIG_KVM
#include "qemu/compiler.h"
#include <linux/kvm.h>
#define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y)
#else
#define MISMATCH_CHECK(X, Y)
#endif
#define CP_REG_SIZE_SHIFT 52
#define CP_REG_SIZE_MASK 0x00f0000000000000ULL
#define CP_REG_SIZE_U32 0x0020000000000000ULL
#define CP_REG_SIZE_U64 0x0030000000000000ULL
#define CP_REG_ARM 0x4000000000000000ULL
target-arm: Update generic cpreg code for AArch64 Update the generic cpreg support code to also handle AArch64: AArch64-visible registers coexist in the same hash table with AArch32-visible ones, with a bit in the hash key distinguishing them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-01-05 02:15:44 +04:00
#define CP_REG_ARCH_MASK 0xff00000000000000ULL
target-arm: Provide mechanism for getting KVM constants even if not CONFIG_KVM There are a number of places where it would be convenient for ARM code to have working definitions of KVM constants even in code which is compiled with CONFIG_KVM not set. In this situation we can't simply include the kernel KVM headers (which might conflict with host header definitions or not even compile on the compiler we're using) so we have to redefine equivalent constants. Provide a mechanism for doing this and checking that the values match, and use it for the constants we're currently exposing via an ad-hoc mechanism. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-2-git-send-email-peter.maydell@linaro.org
2013-11-22 21:17:08 +04:00
MISMATCH_CHECK(CP_REG_SIZE_SHIFT, KVM_REG_SIZE_SHIFT)
MISMATCH_CHECK(CP_REG_SIZE_MASK, KVM_REG_SIZE_MASK)
MISMATCH_CHECK(CP_REG_SIZE_U32, KVM_REG_SIZE_U32)
MISMATCH_CHECK(CP_REG_SIZE_U64, KVM_REG_SIZE_U64)
MISMATCH_CHECK(CP_REG_ARM, KVM_REG_ARM)
target-arm: Update generic cpreg code for AArch64 Update the generic cpreg support code to also handle AArch64: AArch64-visible registers coexist in the same hash table with AArch32-visible ones, with a bit in the hash key distinguishing them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-01-05 02:15:44 +04:00
MISMATCH_CHECK(CP_REG_ARCH_MASK, KVM_REG_ARCH_MASK)
target-arm: Provide mechanism for getting KVM constants even if not CONFIG_KVM There are a number of places where it would be convenient for ARM code to have working definitions of KVM constants even in code which is compiled with CONFIG_KVM not set. In this situation we can't simply include the kernel KVM headers (which might conflict with host header definitions or not even compile on the compiler we're using) so we have to redefine equivalent constants. Provide a mechanism for doing this and checking that the values match, and use it for the constants we're currently exposing via an ad-hoc mechanism. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-2-git-send-email-peter.maydell@linaro.org
2013-11-22 21:17:08 +04:00
target-arm: Provide PSCI constants to generic QEMU code Provide versions of the KVM PSCI constants to non-KVM code; this will allow us to avoid an ifdef in boards which set up a PSCI node in the device tree. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-5-git-send-email-peter.maydell@linaro.org
2013-11-22 21:17:11 +04:00
#define PSCI_FN_BASE 0x95c1ba5e
#define PSCI_FN(n) (PSCI_FN_BASE + (n))
#define PSCI_FN_CPU_SUSPEND PSCI_FN(0)
#define PSCI_FN_CPU_OFF PSCI_FN(1)
#define PSCI_FN_CPU_ON PSCI_FN(2)
#define PSCI_FN_MIGRATE PSCI_FN(3)
MISMATCH_CHECK(PSCI_FN_CPU_SUSPEND, KVM_PSCI_FN_CPU_SUSPEND)
MISMATCH_CHECK(PSCI_FN_CPU_OFF, KVM_PSCI_FN_CPU_OFF)
MISMATCH_CHECK(PSCI_FN_CPU_ON, KVM_PSCI_FN_CPU_ON)
MISMATCH_CHECK(PSCI_FN_MIGRATE, KVM_PSCI_FN_MIGRATE)
target-arm: Don't hardcode KVM target CPU to be A15 Instead of assuming that a KVM target CPU must always be a Cortex-A15 and hardcoding this in kvm_arch_init_vcpu(), store the KVM_ARM_TARGET_* value in the ARMCPU class, and use that. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-10-git-send-email-peter.maydell@linaro.org
2013-11-22 21:17:16 +04:00
#define QEMU_KVM_ARM_TARGET_CORTEX_A15 0
/* There's no kernel define for this: sentinel value which
* matches no KVM target value for either 64 or 32 bit
*/
#define QEMU_KVM_ARM_TARGET_NONE UINT_MAX
#ifndef TARGET_AARCH64
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A15, KVM_ARM_TARGET_CORTEX_A15)
#endif
target-arm: Update generic cpreg code for AArch64 Update the generic cpreg support code to also handle AArch64: AArch64-visible registers coexist in the same hash table with AArch32-visible ones, with a bit in the hash key distinguishing them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-01-05 02:15:44 +04:00
#define CP_REG_ARM64 0x6000000000000000ULL
#define CP_REG_ARM_COPROC_MASK 0x000000000FFF0000
#define CP_REG_ARM_COPROC_SHIFT 16
#define CP_REG_ARM64_SYSREG (0x0013 << CP_REG_ARM_COPROC_SHIFT)
#define CP_REG_ARM64_SYSREG_OP0_MASK 0x000000000000c000
#define CP_REG_ARM64_SYSREG_OP0_SHIFT 14
#define CP_REG_ARM64_SYSREG_OP1_MASK 0x0000000000003800
#define CP_REG_ARM64_SYSREG_OP1_SHIFT 11
#define CP_REG_ARM64_SYSREG_CRN_MASK 0x0000000000000780
#define CP_REG_ARM64_SYSREG_CRN_SHIFT 7
#define CP_REG_ARM64_SYSREG_CRM_MASK 0x0000000000000078
#define CP_REG_ARM64_SYSREG_CRM_SHIFT 3
#define CP_REG_ARM64_SYSREG_OP2_MASK 0x0000000000000007
#define CP_REG_ARM64_SYSREG_OP2_SHIFT 0
/* No kernel define but it's useful to QEMU */
#define CP_REG_ARM64_SYSREG_CP (CP_REG_ARM64_SYSREG >> CP_REG_ARM_COPROC_SHIFT)
#ifdef TARGET_AARCH64
MISMATCH_CHECK(CP_REG_ARM64, KVM_REG_ARM64)
MISMATCH_CHECK(CP_REG_ARM_COPROC_MASK, KVM_REG_ARM_COPROC_MASK)
MISMATCH_CHECK(CP_REG_ARM_COPROC_SHIFT, KVM_REG_ARM_COPROC_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG, KVM_REG_ARM64_SYSREG)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_MASK, KVM_REG_ARM64_SYSREG_OP0_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_SHIFT, KVM_REG_ARM64_SYSREG_OP0_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_MASK, KVM_REG_ARM64_SYSREG_OP1_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_SHIFT, KVM_REG_ARM64_SYSREG_OP1_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_MASK, KVM_REG_ARM64_SYSREG_CRN_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_SHIFT, KVM_REG_ARM64_SYSREG_CRN_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_MASK, KVM_REG_ARM64_SYSREG_CRM_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_SHIFT, KVM_REG_ARM64_SYSREG_CRM_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_MASK, KVM_REG_ARM64_SYSREG_OP2_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_SHIFT, KVM_REG_ARM64_SYSREG_OP2_SHIFT)
#endif
target-arm: Provide mechanism for getting KVM constants even if not CONFIG_KVM There are a number of places where it would be convenient for ARM code to have working definitions of KVM constants even in code which is compiled with CONFIG_KVM not set. In this situation we can't simply include the kernel KVM headers (which might conflict with host header definitions or not even compile on the compiler we're using) so we have to redefine equivalent constants. Provide a mechanism for doing this and checking that the values match, and use it for the constants we're currently exposing via an ad-hoc mechanism. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-2-git-send-email-peter.maydell@linaro.org
2013-11-22 21:17:08 +04:00
#undef MISMATCH_CHECK
#endif
Reference in New Issue Copy Permalink