[Qemu-devel] [PATCH v2 19/19] HACK: rearrange the virt memory map to suit OP-TEE

[Peter Maydell <peter.maydell@linaro.org>]

The current OP-TEE codebase expects the secure UART to
be at 0x09010000 and irq 2 (it is based on an old
non-upstream patch to add a second uart, and upstream
used that memory map area for something else). When
the TZ support is upstream in QEMU we can move OP-TEE
on to a proper upstream QEMU and update it to use the
new UART location, but for now this hack patch allows
running a more-or-less unmodified OP-TEE.

Put the secure UART at the address and irq where OP-TEE
expects it, moving some other devices down to make space.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/virt.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 623e835..ced42be 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -118,9 +118,9 @@ static const MemMapEntry a15memmap[] = {
     /* This redistributor space allows up to 2*64kB*123 CPUs */
     [VIRT_GIC_REDIST] =         { 0x080A0000, 0x00F60000 },
     [VIRT_UART] =               { 0x09000000, 0x00001000 },
-    [VIRT_RTC] =                { 0x09010000, 0x00001000 },
-    [VIRT_FW_CFG] =             { 0x09020000, 0x00000018 },
-    [VIRT_SECURE_UART] =        { 0x09030000, 0x00001000 },
+    [VIRT_RTC] =                { 0x09020000, 0x00001000 },
+    [VIRT_FW_CFG] =             { 0x09030000, 0x00000018 },
+    [VIRT_SECURE_UART] =        { 0x09010000, 0x00001000 },
     [VIRT_MMIO] =               { 0x0a000000, 0x00000200 },
     /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */
     [VIRT_PLATFORM_BUS] =       { 0x0c000000, 0x02000000 },
@@ -134,9 +134,9 @@ static const MemMapEntry a15memmap[] = {
 
 static const int a15irqmap[] = {
     [VIRT_UART] = 1,
-    [VIRT_RTC] = 2,
-    [VIRT_PCIE] = 3, /* ... to 6 */
-    [VIRT_SECURE_UART] = 7,
+    [VIRT_RTC] = 3,
+    [VIRT_PCIE] = 4, /* ... to 7 */
+    [VIRT_SECURE_UART] = 2,
     [VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */
     [VIRT_GIC_V2M] = 48, /* ...to 48 + NUM_GICV2M_SPIS - 1 */
     [VIRT_PLATFORM_BUS] = 112, /* ...to 112 + PLATFORM_BUS_NUM_IRQS -1 */
-- 
1.9.1