[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[PULL 04/10] hw/hppa: Change fw_cfg port address

From: Helge Deller
Subject: [PULL 04/10] hw/hppa: Change fw_cfg port address
Date: Thu, 3 Sep 2020 18:07:40 +0200

Devices on hppa occupy at least 4k starting at the HPA, so MEMORY_HPA+4k is
blocked (by Linux) for the memory module.  I noticed this when testing the new
Linux kernel patch to let the fw_cfg entries show up in Linux under /proc.
The Linux kernel driver could not allocate the region for fw_cfg.
This new base address seems to not conflict.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 hw/hppa/hppa_hardware.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/hppa/hppa_hardware.h b/hw/hppa/hppa_hardware.h
index cdb7fa6240..b2fbbc2eec 100644
--- a/hw/hppa/hppa_hardware.h
+++ b/hw/hppa/hppa_hardware.h
@@ -38,8 +38,7 @@

-/* QEMU fw_cfg interface port */
-#define QEMU_FW_CFG_IO_BASE     (MEMORY_HPA + 0x80)
+#define QEMU_FW_CFG_IO_BASE     0xfffa0000

 #define PORT_SERIAL1    (DINO_UART_HPA + 0x800)
 #define PORT_SERIAL2    (LASI_UART_HPA + 0x800)

reply via email to

[Prev in Thread] Current Thread [Next in Thread]