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Peter Maydell 4cdd146d8b hw/arm/smmuv3: Advertise SMMUv3.1-XNX feature 
The SMMUv3.1-XNX feature is mandatory for an SMMUv3.1 if S2P is
supported, so we should theoretically have implemented it as part of
the recent S2P work.  Fortunately, for us the implementation is a
no-op.

This feature is about interpretation of the stage 2 page table
descriptor XN bits, which control execute permissions.

For QEMU, the permission bits passed to an IOMMU (via MemTxAttrs and
IOMMUAccessFlags) only indicate read and write; we do not distinguish
data reads from instruction reads outside the CPU proper.  In the
SMMU architecture's terms, our interconnect between the client device
and the SMMU doesn't have the ability to convey the INST attribute,
and we therefore use the default value of "data" for this attribute.

We also do not support the bits in the Stream Table Entry that can
override the on-the-bus transaction attribute permissions (we do not
set SMMU_IDR1.ATTR_PERMS_OVR=1).

These two things together mean that for our implementation, it never
has to deal with transactions with the INST attribute, and so it can
correctly ignore the XN bits entirely.  So we already implement
FEAT_XNX's "XN field is now 2 bits, not 1" behaviour to the extent
that we need to.

Advertise the presence of the feature in SMMU_IDR3.XNX.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20230914145705.1648377-4-peter.maydell@linaro.org
 		2023-10-19 14:32:13 +01:00
..
Kconfig hw/arm/sbsa-ref: use XHCI to replace EHCI 2023-07-04 14:08:47 +01:00
allwinner-a10.c hw/arm: Add WDT to Allwinner-A10 and Cubieboard 2023-04-20 10:21:13 +01:00
allwinner-h3.c hw/arm: Add WDT to Allwinner-H3 and Orangepi-PC 2023-04-20 10:21:14 +01:00
allwinner-r40.c hw/arm/allwinner: Clean up local variable shadowing 2023-09-29 10:07:15 +02:00
armsse.c hw/arm/armv7m: Clean up local variable shadowing 2023-09-29 10:07:15 +02:00
armv7m.c hw/arm/armv7m: Clean up local variable shadowing 2023-09-29 10:07:15 +02:00
aspeed.c aspeed: Get the BlockBackend of FMC0 from the flash device 2023-09-01 11:40:04 +02:00
aspeed_ast10x0.c hw/arm/aspeed_ast10x0: Add TODO comment to use Cortex-M4F 2023-02-07 09:02:05 +01:00
aspeed_ast2600.c aspeed: Clean up local variable shadowing 2023-09-29 10:07:19 +02:00
aspeed_eeprom.c hw/arm/aspeed: Add VPD data for Rainier machine 2023-06-15 18:35:57 +02:00
aspeed_eeprom.h hw/arm/aspeed: Add VPD data for Rainier machine 2023-06-15 18:35:57 +02:00
aspeed_soc.c aspeed: Introduce a spi_boot region under the SoC 2023-03-02 13:57:50 +01:00
bananapi_m2u.c hw: arm: allwinner-r40: Add emac and gmac support 2023-06-06 10:19:33 +01:00
bcm2835_peripherals.c hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
bcm2836.c hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
boot.c hw/arm/boot: Set SCR_EL3.FGTEn when booting kernel 2023-09-21 14:45:57 +01:00
collie.c *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
cubieboard.c *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
digic.c arm/digic: replace snprintf() with g_strdup_printf() 2022-04-21 17:03:51 +04:00
digic_boards.c hw/arm: Don't include qemu-common.h unnecessarily 2021-12-15 10:35:26 +00:00
exynos4_boards.c hw/arm/boot: Drop nb_cpus field from arm_boot_info 2022-02-08 10:56:28 +00:00
exynos4210.c hw/arm: Fix some typos in comments (most found by codespell) 2023-04-20 10:21:13 +01:00
fby35.c aspeed: Use the boot_rom region of the fby35 machine 2023-06-15 18:35:58 +02:00
fsl-imx6.c fsl-imx6: Add SNVS support for i.MX6 boards 2023-05-30 13:02:53 +01:00
fsl-imx6ul.c Add i.MX6UL missing devices. 2023-08-31 09:45:16 +01:00
fsl-imx7.c Add i.MX7 SRC device implementation 2023-08-31 09:45:17 +01:00
fsl-imx25.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
fsl-imx31.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
gumstix.c hw/arm: Remove unreachable code calling pflash_cfi01_register() 2023-01-12 17:03:14 +00:00
highbank.c hw/arm/boot: Drop nb_cpus field from arm_boot_info 2022-02-08 10:56:28 +00:00
imx25_pdk.c hw/arm/boot: Drop nb_cpus field from arm_boot_info 2022-02-08 10:56:28 +00:00
integratorcp.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
kzm.c hw/arm/boot: Drop nb_cpus field from arm_boot_info 2022-02-08 10:56:28 +00:00
mainstone.c hw/arm: Remove unreachable code calling pflash_cfi01_register() 2023-01-12 17:03:14 +00:00
mcimx6ul-evk.c arm/mcimx6ul-evk: Set fec1-phy-connected property to false 2023-04-20 10:46:29 +01:00
mcimx7d-sabre.c arm/mcimx7d-sabre: Set fec2-phy-connected property to false 2023-04-20 10:46:43 +01:00
meson.build hw/xen: cleanup sourcesets 2023-10-18 10:01:01 +02:00
microbit.c target/arm: Make boards pass base address to armv7m_load_kernel() 2022-09-14 11:19:40 +01:00
mps2-tz.c hw/arm: Set number of MPU regions correctly for an505, an521, an524 2023-08-31 11:07:02 +01:00
mps2.c hw/char/cmsdk-apb-uart: Open-code cmsdk_apb_uart_create() 2023-02-27 13:27:05 +00:00
msf2-soc.c arm: Remove system_clock_scale global 2021-09-01 11:08:21 +01:00
msf2-som.c tests/avocado: Truncate M2S-FG484 SOM SPI flash to 16MiB 2023-02-07 09:02:04 +01:00
musca.c target/arm: Make boards pass base address to armv7m_load_kernel() 2022-09-14 11:19:40 +01:00
musicpal.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
netduino2.c target/arm: Make boards pass base address to armv7m_load_kernel() 2022-09-14 11:19:40 +01:00
netduinoplus2.c target/arm: Make boards pass base address to armv7m_load_kernel() 2022-09-14 11:19:40 +01:00
npcm7xx.c hw/arm: Attach PSPI module to NPCM7XX SoC 2023-02-16 16:00:48 +00:00
npcm7xx_boards.c *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
nrf51_soc.c arm: Remove system_clock_scale global 2021-09-01 11:08:21 +01:00
nseries.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
olimex-stm32-h405.c hw/arm: Add Olimex H405 2023-01-12 16:50:19 +00:00
omap1.c hw/arm: Fix some typos in comments (most found by codespell) 2023-04-20 10:21:13 +01:00
omap2.c audio: propagate Error * out of audio_init 2023-10-03 10:29:40 +02:00
omap_sx1.c *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
orangepi.c *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
palm.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
pxa2xx.c hw/arm/pxa2xx: Simplify pxa270_init() 2023-01-12 17:03:14 +00:00
pxa2xx_gpio.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pxa2xx_pic.c target/arm: Replace sentinels with ARRAY_SIZE in cpregs.h 2022-05-05 09:35:50 +01:00
raspi.c hw/arm/raspi: Use arm_write_bootloader() to write boot code 2023-05-02 15:47:41 +01:00
realview.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
sabrelite.c hw/arm/boot: Drop nb_cpus field from arm_boot_info 2022-02-08 10:56:28 +00:00
sbsa-ref.c hw/arm/sbsa-ref: use bsa.h for PPI definitions 2023-10-19 14:32:13 +01:00
smmu-common.c hw/arm/smmu: Handle big-endian hosts correctly 2023-07-25 10:56:51 +01:00
smmu-internal.h hw/arm/smmuv3: Add VMID to TLB tagging 2023-05-30 15:50:16 +01:00
smmuv3-internal.h hw/arm/smmuv3: Update ID register bit field definitions 2023-10-19 14:32:13 +01:00
smmuv3.c hw/arm/smmuv3: Advertise SMMUv3.1-XNX feature 2023-10-19 14:32:13 +01:00
spitz.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
stellaris.c hw/sd: Introduce a "sd-card" SPI variant model 2023-09-01 11:40:04 +02:00
stm32f100_soc.c hw/arm/stm32f100: Wire up sysclk and refclk 2021-09-01 11:08:19 +01:00
stm32f205_soc.c hw/arm/stm32f205: Wire up sysclk and refclk 2021-09-01 11:08:19 +01:00
stm32f405_soc.c hw/arm/stm32f405: correctly describe the memory layout 2023-01-12 16:50:18 +00:00
stm32vldiscovery.c target/arm: Make boards pass base address to armv7m_load_kernel() 2022-09-14 11:19:40 +01:00
strongarm.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
strongarm.h hw/arm/collie: Create the RAM in the board 2019-10-22 17:44:01 +01:00
tosa.c hw/arm/pxa2xx: Simplify pxa255_init() 2023-01-12 17:03:14 +00:00
trace-events hw/arm/smmuv3: Add stage-2 support in iova notifier 2023-05-30 15:50:16 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
versatilepb.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
vexpress.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
virt-acpi-build.c {include/}hw/arm: refactor virt PPI logic 2023-10-19 14:32:12 +01:00
virt.c {include/}hw/arm: refactor virt PPI logic 2023-10-19 14:32:12 +01:00
xen_arm.c xen_arm: Initialize RAM and add hi/low memory regions 2023-08-30 18:23:08 -07:00
xilinx_zynq.c hw/ssi: Check for duplicate CS indexes 2023-09-01 11:40:04 +02:00
xlnx-versal-virt.c hw/ssi: Check for duplicate CS indexes 2023-09-01 11:40:04 +02:00
xlnx-versal.c hw/arm/versal: Connect the CFRAME_REG and CFRAME_BCAST_REG 2023-09-08 16:41:35 +01:00
xlnx-zcu102.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00
xlnx-zynqmp.c hw/arm/xlnx-zynqmp: fix unsigned error when checking the RPUs number 2023-05-30 15:50:16 +01:00
z2.c hw/arm: Support machine-default audiodev with fallback 2023-10-03 10:29:39 +02:00