Add kvm selftests header files for LoongArch, including processor.h, sysreg.h, and kvm_util_base.h. Those mainly contain LoongArch CSR register defines and page table information. Based-on: <20230720062813.4126751-1-zhaotianrui@xxxxxxxxxxx> Signed-off-by: Tianrui Zhao <zhaotianrui@xxxxxxxxxxx> --- .../selftests/kvm/include/kvm_util_base.h | 5 ++ .../kvm/include/loongarch/processor.h | 28 ++++++ .../selftests/kvm/include/loongarch/sysreg.h | 89 +++++++++++++++++++ 3 files changed, 122 insertions(+) create mode 100644 tools/testing/selftests/kvm/include/loongarch/processor.h create mode 100644 tools/testing/selftests/kvm/include/loongarch/sysreg.h diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 07732a157ccd..8747127e0bab 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -197,6 +197,11 @@ extern enum vm_guest_mode vm_mode_default; #define MIN_PAGE_SHIFT 12U #define ptes_per_page(page_size) ((page_size) / 8) +#elif defined(__loongarch__) +#define VM_MODE_DEFAULT VM_MODE_P36V47_16K +#define MIN_PAGE_SHIFT 14U +#define ptes_per_page(page_size) ((page_size) / 8) + #endif #define MIN_PAGE_SIZE (1U << MIN_PAGE_SHIFT) diff --git a/tools/testing/selftests/kvm/include/loongarch/processor.h b/tools/testing/selftests/kvm/include/loongarch/processor.h new file mode 100644 index 000000000000..d67796af51a0 --- /dev/null +++ b/tools/testing/selftests/kvm/include/loongarch/processor.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * LoongArch processor specific defines + */ +#ifndef SELFTEST_KVM_PROCESSOR_H +#define SELFTEST_KVM_PROCESSOR_H + +#include <linux/compiler.h> +#define _PAGE_VALID_SHIFT 0 +#define _PAGE_DIRTY_SHIFT 1 +#define _PAGE_PLV_SHIFT 2 /* 2~3, two bits */ +#define _CACHE_SHIFT 4 /* 4~5, two bits */ +#define _PAGE_PRESENT_SHIFT 7 +#define _PAGE_WRITE_SHIFT 8 + +#define PLV_KERN 0 +#define PLV_USER 3 +#define PLV_MASK 0x3 + +#define _PAGE_VALID (0x1UL << _PAGE_VALID_SHIFT) +#define _PAGE_PRESENT (0x1UL << _PAGE_PRESENT_SHIFT) +#define _PAGE_WRITE (0x1UL << _PAGE_WRITE_SHIFT) +#define _PAGE_DIRTY (0x1UL << _PAGE_DIRTY_SHIFT) +#define _PAGE_USER (PLV_USER << _PAGE_PLV_SHIFT) +#define __READABLE (_PAGE_VALID) +#define __WRITEABLE (_PAGE_DIRTY | _PAGE_WRITE) +#define _CACHE_CC (0x1UL << _CACHE_SHIFT) /* Coherent Cached */ +#endif diff --git a/tools/testing/selftests/kvm/include/loongarch/sysreg.h b/tools/testing/selftests/kvm/include/loongarch/sysreg.h new file mode 100644 index 000000000000..04f53674c9d8 --- /dev/null +++ b/tools/testing/selftests/kvm/include/loongarch/sysreg.h @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef SELFTEST_KVM_SYSREG_H +#define SELFTEST_KVM_SYSREG_H + +/* + * note that this declaration raises a checkpatch warning, but + * no good way to avoid it. + */ +#define zero $r0 +#define ra $r1 +#define tp $r2 +#define sp $r3 +#define a0 $r4 +#define a1 $r5 +#define a2 $r6 +#define a3 $r7 +#define a4 $r8 +#define a5 $r9 +#define a6 $r10 +#define a7 $r11 +#define t0 $r12 +#define t1 $r13 +#define t2 $r14 +#define t3 $r15 +#define t4 $r16 +#define t5 $r17 +#define t6 $r18 +#define t7 $r19 +#define t8 $r20 +#define u0 $r21 +#define fp $r22 +#define s0 $r23 +#define s1 $r24 +#define s2 $r25 +#define s3 $r26 +#define s4 $r27 +#define s5 $r28 +#define s6 $r29 +#define s7 $r30 +#define s8 $r31 + +#define PS_4K 0x0000000c +#define PS_8K 0x0000000d +#define PS_16K 0x0000000e +#define PS_DEFAULT_SIZE PS_16K + +/* Basic CSR registers */ +#define LOONGARCH_CSR_CRMD 0x0 /* Current mode info */ +#define CSR_CRMD_PG_SHIFT 4 +#define CSR_CRMD_PG (0x1UL << CSR_CRMD_PG_SHIFT) +#define CSR_CRMD_IE_SHIFT 2 +#define CSR_CRMD_IE (0x1UL << CSR_CRMD_IE_SHIFT) +#define CSR_CRMD_PLV_SHIFT 0 +#define CSR_CRMD_PLV_WIDTH 2 +#define CSR_CRMD_PLV (0x3UL << CSR_CRMD_PLV_SHIFT) +#define PLV_MASK 0x3 + +#define LOONGARCH_CSR_PRMD 0x1 +#define LOONGARCH_CSR_EUEN 0x2 +#define LOONGARCH_CSR_ECFG 0x4 +#define LOONGARCH_CSR_EENTRY 0xc +#define LOONGARCH_CSR_TLBIDX 0x10 /* TLB Index, EHINV, PageSize, NP */ +#define CSR_TLBIDX_PS_SHIFT 24 +#define CSR_TLBIDX_PS_WIDTH 6 +#define CSR_TLBIDX_PS (0x3fUL << CSR_TLBIDX_PS_SHIFT) +#define CSR_TLBIDX_SIZEM 0x3f000000 +#define CSR_TLBIDX_SIZE CSR_TLBIDX_PS_SHIFT + +#define LOONGARCH_CSR_ASID 0x18 /* ASID */ +/* Page table base address when VA[VALEN-1] = 0 */ +#define LOONGARCH_CSR_PGDL 0x19 +/* Page table base address when VA[VALEN-1] = 1 */ +#define LOONGARCH_CSR_PGDH 0x1a +/* Page table base */ +#define LOONGARCH_CSR_PGD 0x1b +#define LOONGARCH_CSR_PWCTL0 0x1c +#define LOONGARCH_CSR_PWCTL1 0x1d +#define LOONGARCH_CSR_STLBPGSIZE 0x1e +#define LOONGARCH_CSR_CPUID 0x20 +#define LOONGARCH_CSR_TMID 0x40 +#define LOONGARCH_CSR_TCFG 0x41 +#define LOONGARCH_CSR_TLBRENTRY 0x88 /* TLB refill exception entry */ +/* KSave for TLB refill exception */ +#define LOONGARCH_CSR_TLBRSAVE 0x8b +#define LOONGARCH_CSR_TLBREHI 0x8e +#define CSR_TLBREHI_PS_SHIFT 0 +#define CSR_TLBREHI_PS (0x3fUL << CSR_TLBREHI_PS_SHIFT) + +#endif /* SELFTEST_KVM_SYSREG_H */ -- 2.39.1
