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From: <tony.nguyen@bt.com>
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Subject: [Qemu-devel] [PATCH v7 27/42] hw/pci-host: Declare device little or big endian
Date: Fri, 16 Aug 2019 07:35:16 +0000
Message-ID: <1565940916012.8169@bt.com> (raw)
In-Reply-To: <43bc5e07ac614d0e8e740bf6007ff77b@tpw09926dag18e.domain1.systemhost.net>

For each device declared with DEVICE_NATIVE_ENDIAN, find the set of
targets from the set of target/hw/*/device.o.

If the set of targets are all little or all big endian, re-declare
the device endianness as DEVICE_LITTLE_ENDIAN or DEVICE_BIG_ENDIAN
respectively.

This *naive* deduction may result in genuinely native endian devices
being incorrectly declared as little or big endian, but should not
introduce regressions for current targets.

These devices should be re-declared as DEVICE_NATIVE_ENDIAN if 1) it
has a new target with an opposite endian or 2) someone informed knows
better =)

Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
---
 hw/pci-host/q35.c       | 2 +-
 hw/pci-host/versatile.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 0a010be..fd20f72 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -288,7 +288,7 @@ static void tseg_blackhole_write(void *opaque, hwaddr addr, uint64_t val,
 static const MemoryRegionOps tseg_blackhole_ops = {
     .read = tseg_blackhole_read,
     .write = tseg_blackhole_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
     .valid.min_access_size = 1,
     .valid.max_access_size = 4,
     .impl.min_access_size = 4,
diff --git a/hw/pci-host/versatile.c b/hw/pci-host/versatile.c
index 791b321..e7017f3 100644
--- a/hw/pci-host/versatile.c
+++ b/hw/pci-host/versatile.c
@@ -240,7 +240,7 @@ static uint64_t pci_vpb_reg_read(void *opaque, hwaddr addr,
 static const MemoryRegionOps pci_vpb_reg_ops = {
     .read = pci_vpb_reg_read,
     .write = pci_vpb_reg_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
     .valid = {
         .min_access_size = 4,
         .max_access_size = 4,
@@ -306,7 +306,7 @@ static uint64_t pci_vpb_config_read(void *opaque, hwaddr addr,
 static const MemoryRegionOps pci_vpb_config_ops = {
     .read = pci_vpb_config_read,
     .write = pci_vpb_config_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
 };

 static int pci_vpb_map_irq(PCIDevice *d, int irq_num)
--
1.8.3.1

?


  parent reply index

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-16  6:28 [Qemu-devel] [PATCH v7 00/42] Invert Endian bit in SPARCv9 MMU TTE tony.nguyen
2019-08-16  7:08 ` [Qemu-devel] [PATCH v7 01/42] configure: Define TARGET_ALIGNED_ONLY tony.nguyen
2019-08-16  7:26 ` [Qemu-devel] [PATCH v7 02/42] tcg: TCGMemOp is now accelerator independent MemOp tony.nguyen
2019-08-16  7:27 ` [Qemu-devel] [PATCH v7 03/42] memory: Introduce size_memop tony.nguyen
2019-08-16  7:27 ` [Qemu-devel] [PATCH v7 04/42] target/mips: Access MemoryRegion with MemOp tony.nguyen
2019-08-16  7:28 ` [Qemu-devel] [PATCH v7 05/42] hw/s390x: " tony.nguyen
2019-08-16  7:28 ` [Qemu-devel] [PATCH v7 06/42] hw/intc/armv7m_nic: " tony.nguyen
2019-08-16  7:28 ` [Qemu-devel] [PATCH v7 07/42] hw/virtio: " tony.nguyen
2019-08-16  7:29 ` [Qemu-devel] [PATCH v7 08/42] hw/vfio: " tony.nguyen
2019-08-16  7:29 ` [Qemu-devel] [PATCH v7 09/42] exec: " tony.nguyen
2019-08-16  7:30 ` [Qemu-devel] [PATCH v7 10/42] cputlb: " tony.nguyen
2019-08-16  7:30 ` [Qemu-devel] [PATCH v7 11/42] memory: " tony.nguyen
2019-08-18 21:44   ` Philippe Mathieu-Daudé
2019-08-16  7:30 ` [Qemu-devel] [PATCH v7 12/42] hw/s390x: Hard code size with MO_{8|16|32|64} tony.nguyen
2019-08-16  7:31 ` [Qemu-devel] [PATCH v7 13/42] target/mips: " tony.nguyen
2019-08-16  7:31 ` [Qemu-devel] [PATCH v7 14/42] exec: " tony.nguyen
2019-08-16  7:31 ` [Qemu-devel] [PATCH v7 15/42] hw/audio: Declare device little or big endian tony.nguyen
2019-08-16  7:32 ` [Qemu-devel] [PATCH v7 16/42] hw/block: " tony.nguyen
2019-08-16  7:32 ` [Qemu-devel] [PATCH v7 17/42] hw/char: " tony.nguyen
2019-08-16  7:32 ` [Qemu-devel] [PATCH v7 18/42] hw/display: " tony.nguyen
2019-08-16  7:33 ` [Qemu-devel] [PATCH v7 19/42] hw/dma: " tony.nguyen
2019-08-16  7:33 ` [Qemu-devel] [PATCH v7 20/42] hw/gpio: " tony.nguyen
2019-08-16  7:33 ` [Qemu-devel] [PATCH v7 21/42] hw/i2c: " tony.nguyen
2019-08-16  7:33 ` [Qemu-devel] [PATCH v7 22/42] hw/input: " tony.nguyen
2019-08-16  7:34 ` [Qemu-devel] [PATCH v7 23/42] hw/intc: " tony.nguyen
2019-08-16  7:34 ` [Qemu-devel] [PATCH v7 24/42] hw/isa: " tony.nguyen
2019-08-16 10:01   ` Philippe Mathieu-Daudé
2019-08-16  7:34 ` [Qemu-devel] [PATCH v7 25/42] hw/misc: " tony.nguyen
2019-08-16 10:04   ` Philippe Mathieu-Daudé
2019-08-19 18:26     ` Paolo Bonzini
2019-08-16  7:35 ` [Qemu-devel] [PATCH v7 26/42] hw/net: " tony.nguyen
2019-08-16  7:35 ` tony.nguyen [this message]
2019-08-16 10:06   ` [Qemu-devel] [PATCH v7 27/42] hw/pci-host: " Philippe Mathieu-Daudé
2019-08-16  7:35 ` [Qemu-devel] [PATCH v7 28/42] hw/sd: " tony.nguyen
2019-08-16  7:35 ` [Qemu-devel] [PATCH v7 29/42] hw/ssi: " tony.nguyen
2019-08-16  7:36 ` [Qemu-devel] [PATCH v7 30/42] hw/timer: " tony.nguyen
2019-08-16  7:36 ` [Qemu-devel] [PATCH v7 31/42] build: Correct non-common common-obj-* to obj-* tony.nguyen
2019-08-16  7:36 ` [Qemu-devel] [PATCH v7 32/42] exec: Map device_endian onto MemOp tony.nguyen
2019-08-16  7:37 ` [Qemu-devel] [PATCH v7 33/42] exec: Replace device_endian with MemOp tony.nguyen
2019-08-16 10:12   ` [Qemu-devel] [qemu-s390x] " Thomas Huth
2019-08-19 18:28     ` Paolo Bonzini
2019-08-19 18:29       ` Paolo Bonzini
2019-08-19 21:01         ` Richard Henderson
2019-08-20  3:11           ` Edgar E. Iglesias
2019-08-16  7:37 ` [Qemu-devel] [PATCH v7 34/42] exec: Delete device_endian tony.nguyen
2019-08-16  7:37 ` [Qemu-devel] [PATCH v7 35/42] exec: Delete DEVICE_HOST_ENDIAN tony.nguyen
2019-08-16  7:38 ` [Qemu-devel] [PATCH v7 36/42] memory: Access MemoryRegion with endianness tony.nguyen
2019-08-18 12:22   ` Richard Henderson
2019-08-16  7:38 ` [Qemu-devel] [PATCH v7 37/42] cputlb: Replace size and endian operands for MemOp tony.nguyen
2019-08-18 12:37   ` Richard Henderson
2019-08-16  7:38 ` [Qemu-devel] [PATCH v7 38/42] memory: Single byte swap along the I/O path tony.nguyen
2019-08-18 12:46   ` Richard Henderson
2019-08-16  7:39 ` [Qemu-devel] [PATCH v7 39/42] cpu: TLB_FLAGS_MASK bit to force memory slow path tony.nguyen
2019-08-16  7:39 ` [Qemu-devel] [PATCH v7 40/42] cputlb: Byte swap memory transaction attribute tony.nguyen
2019-08-16  7:39 ` [Qemu-devel] [PATCH v7 41/42] target/sparc: Add TLB entry with attributes tony.nguyen
2019-08-16  7:39 ` [Qemu-devel] [PATCH v7 42/42] target/sparc: sun4u Invert Endian TTE bit tony.nguyen
2019-08-16  8:03 ` [Qemu-devel] [PATCH v7 33/42] exec: Replace device_endian with MemOp tony.nguyen
2019-08-16  9:33 ` tony.nguyen
2019-08-16  9:58 ` [Qemu-devel] [PATCH v7 00/42] Invert Endian bit in SPARCv9 MMU TTE Philippe Mathieu-Daudé
2019-08-16 11:37   ` tony.nguyen
2019-08-16 12:02     ` Peter Maydell
2019-08-16 11:43   ` David Gibson
2019-08-18  9:13 ` Richard Henderson

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