Ivan Klokov 6bca4d7d1f target/riscv/cpu_helper.c: Fix mxr bit behavior ... According to RISCV Specification sect 9.5 on two stage translation when V=1 the vsstatus(mstatus in QEMU's terms) field MXR, which makes execute-only pages readable, only overrides VS-stage page protection. Setting MXR at HS-level(mstatus_hs), however, overrides both VS-stage and G-stage execute-only permissions. The hypervisor extension changes the behavior of MXR\MPV\MPRV bits. Due to RISCV Specification sect. 9.4.1 when MPRV=1, explicit memory accesses are translated and protected, and endianness is applied, as though the current virtualization mode were set to MPV and the current nominal privilege mode were set to MPP. vsstatus.MXR makes readable those pages marked executable at the VS translation stage. Fixes: 36a18664ba ("target/riscv: Implement second stage MMU") Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20231121071757.7178-3-ivan.klokov@syntacore.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>		2023-11-22 14:03:37 +10:00
..
insn_trans	target/riscv: Replace Zvbb checking by Zvkb	2023-11-07 11:06:02 +10:00
kvm	target/riscv/kvm: add zicsr, zifencei, zba, zbs, svnapot	2023-11-07 11:06:02 +10:00
tcg	target/riscv: don't verify ISA compatibility for zicntr and zihpm	2023-11-22 13:56:13 +10:00
arch_dump.c	target/riscv: Fix format for comments	2023-05-05 10:49:50 +10:00
bitmanip_helper.c	target/riscv: rvk: add support for zbkx extension	2022-04-29 10:47:45 +10:00
common-semi-target.h	semihosting: Split out common-semi-target.h	2022-06-28 04:35:07 +05:30
cpu_bits.h	target/riscv: Add M-mode virtual interrupt and IRQ filtering support.	2023-11-07 11:02:17 +10:00
cpu_cfg.h	target/riscv: Add "pmu-mask" property to replace "pmu-num"	2023-11-07 11:06:02 +10:00
cpu_helper.c	target/riscv/cpu_helper.c: Fix mxr bit behavior	2023-11-22 14:03:37 +10:00
cpu_user.h	Supply missing header guards	2019-06-12 13:20:21 +02:00
cpu_vendorid.h	target/riscv: add Ventana's Veyron V1 CPU	2023-05-05 10:49:50 +10:00
cpu-param.h	target/riscv: Remove NB_MMU_MODES define	2023-03-13 06:44:37 -07:00
cpu-qom.h	target: Move ArchCPUClass definition to 'cpu.h'	2023-11-07 13:08:48 +01:00
cpu.c	hw/cpu: Call object_class_is_abstract() once in cpu_class_by_name()	2023-11-07 13:08:48 +01:00
cpu.h	target/riscv/cpu.h: spelling fix: separatly	2023-11-15 12:06:05 +03:00
crypto_helper.c	target/riscv: Use accelerated helper for AES64KS1I	2023-09-11 11:45:55 +10:00
csr.c	target/riscv: Don't assume PMU counters are continuous	2023-11-07 11:06:02 +10:00
debug.c	target/riscv: Allocate itrigger timers only once	2023-09-11 11:45:55 +10:00
debug.h	target/riscv: Allocate itrigger timers only once	2023-09-11 11:45:55 +10:00
fpu_helper.c	riscv: Add support for the Zfa extension	2023-07-10 22:29:20 +10:00
gdbstub.c	target/riscv: rename ext_icsr to ext_zicsr	2023-11-07 11:02:17 +10:00
helper.h	target/riscv: Add Zvksed ISA extension support	2023-09-11 11:45:55 +10:00
insn16.decode	target/riscv: add support for Zcmt extension	2023-05-05 10:49:50 +10:00
insn32.decode	target/riscv: Add Zvksed ISA extension support	2023-09-11 11:45:55 +10:00
instmap.h	target/riscv: Update [m|h]tinst CSR in riscv_cpu_do_interrupt()	2022-09-07 09:18:32 +02:00
internals.h	target/riscv: Use env_archcpu() in [check_]nanbox()	2023-11-07 12:13:27 +01:00
Kconfig	meson: Introduce target-specific Kconfig	2021-07-09 18:21:34 +02:00
m128_helper.c	target/helpers: Remove unnecessary 'qemu/main-loop.h' header	2023-08-31 19:47:43 +02:00
machine.c	target/riscv: Add "pmu-mask" property to replace "pmu-num"	2023-11-07 11:06:02 +10:00
meson.build	target/riscv: move KVM only files to kvm subdir	2023-10-12 12:20:24 +10:00
monitor.c	riscv: spelling fixes	2023-09-08 13:08:52 +03:00
op_helper.c	target/helpers: Remove unnecessary 'qemu/main-loop.h' header	2023-08-31 19:47:43 +02:00
pmp.c	target/riscv: pmp: Ignore writes when RW=01	2023-11-07 11:06:02 +10:00
pmp.h	target/riscv: pmp: Clear pmp/smepmp bits on reset	2023-11-07 11:06:02 +10:00
pmu.c	target/riscv: Add "pmu-mask" property to replace "pmu-num"	2023-11-07 11:06:02 +10:00
pmu.h	target/riscv: Use existing PMU counter mask in FDT generation	2023-11-07 11:06:02 +10:00
riscv-qmp-cmds.c	target/riscv/riscv-qmp-cmds.c: check CPU accel in query-cpu-model-expansion	2023-11-07 11:06:02 +10:00
sbi_ecall_interface.h	target/riscv: Fix format for comments	2023-05-05 10:49:50 +10:00
time_helper.c	target/riscv: Simplify type conversion for CPURISCVState	2023-05-05 10:49:49 +10:00
time_helper.h	target/riscv: Simplify type conversion for CPURISCVState	2023-05-05 10:49:49 +10:00
trace-events	target/riscv: Add ePMP CSR access functions	2021-05-11 20:02:06 +10:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
translate.c	accel/tcg: Replace CPUState.env_ptr with cpu_env()	2023-10-04 11:03:54 -07:00
vcrypto_helper.c	target/riscv: Add Zvksed ISA extension support	2023-09-11 11:45:55 +10:00
vector_helper.c	target/riscv: Fix vfwmaccbf16.vf	2023-10-12 12:50:13 +10:00
vector_internals.c	target/riscv: Refactor some of the generic vector functionality	2023-09-11 11:45:54 +10:00
vector_internals.h	target/riscv: Refactor some of the generic vector functionality	2023-09-11 11:45:55 +10:00
xthead.decode	RISC-V: Adding XTheadFmv ISA extension	2023-02-07 08:19:23 +10:00
XVentanaCondOps.decode	target/riscv: Add XVentanaCondOps custom extension	2022-02-16 12:24:18 +10:00
zce_helper.c	target/riscv: add support for Zcmt extension	2023-05-05 10:49:50 +10:00