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From: Tony Nguyen <tony.nguyen@bt.com>
To: qemu-devel@nongnu.org
Cc: Aleksandar Rikalo <arikalo@wavecomp.com>,
	Tony Nguyen <tony.nguyen@bt.com>,
	Aleksandar Markovic <amarkovic@wavecomp.com>
Subject: [Qemu-devel] [RFC PATCH 10/17] hw/isa: Declare device little or big endian
Date: Sat, 24 Aug 2019 04:56:31 +1000
Message-ID: <2ef68c79b6b6678dcd5a67a2de6d67089d39f38c.1566467963.git.tony.nguyen@bt.com> (raw)
In-Reply-To: <cover.1566467963.git.tony.nguyen@bt.com>

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/isa/vt82c686.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index 50bd28fa82..400f2b3c87 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -109,7 +109,7 @@ static uint64_t superio_ioport_readb(void *opaque, hwaddr addr, unsigned size)
 static const MemoryRegionOps superio_ops = {
     .read = superio_ioport_readb,
     .write = superio_ioport_writeb,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
     .impl = {
         .min_access_size = 1,
         .max_access_size = 1,
-- 
2.23.0



  parent reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23 18:56 [Qemu-devel] [RFC PATCH 00/17] " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 01/17] hw/audio: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 02/17] hw/block: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 03/17] hw/char: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 04/17] hw/display: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 05/17] hw/dma: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 06/17] hw/gpio: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 07/17] hw/i2c: " Tony Nguyen
2019-08-24  9:27   ` David Gibson
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 08/17] hw/input: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 09/17] hw/intc: " Tony Nguyen
2019-08-23 18:56 ` Tony Nguyen [this message]
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 11/17] hw/misc: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 12/17] hw/net: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 13/17] hw/pci-host: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 14/17] hw/sd: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 15/17] hw/ssi: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 16/17] hw/timer: " Tony Nguyen
2019-08-23 18:56 ` [Qemu-devel] [RFC PATCH 17/17] build: Correct non-common common-obj-* to obj-* Tony Nguyen
2019-08-23 20:05   ` Paolo Bonzini
2019-08-23 19:42 ` [Qemu-devel] [RFC PATCH 00/17] Declare device little or big endian no-reply

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