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Re: [PATCH v3 18/86] arm:kzm: drop RAM size fixup

From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v3 18/86] arm:kzm: drop RAM size fixup
Date: Thu, 16 Jan 2020 19:22:08 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2

On 1/16/20 6:26 PM, Igor Mammedov wrote:
If the user provided too large a RAM size, the code used to
complain and trim it to the max size.  Now tht RAM is allocated by
generic code, that's no longer possible, so generate an error and
exit instead.

Signed-off-by: Igor Mammedov <address@hidden>
  * rephrase commit message in nicer way
    ("Chubb, Peter (Data61, Kensington NSW)" <address@hidden>)
  * reword error message and use size_to_str() to pretty print suggested size
    ("Chubb, Peter (Data61, Kensington NSW)" <address@hidden>)

CC: address@hidden
CC: address@hidden
CC: address@hidden
  hw/arm/kzm.c | 9 +++++----
  1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/hw/arm/kzm.c b/hw/arm/kzm.c
index 1d5ef28..94cbac1 100644
--- a/hw/arm/kzm.c
+++ b/hw/arm/kzm.c
@@ -25,6 +25,7 @@
  #include "hw/char/serial.h"
  #include "sysemu/qtest.h"
  #include "sysemu/sysemu.h"
+#include "qemu/cutils.h"
/* Memory map for Kzm Emulation Baseboard:
   * 0x00000000-0x7fffffff See i.MX31 SOC for support
@@ -78,10 +79,10 @@ static void kzm_init(MachineState *machine)
/* Check the amount of memory is compatible with the SOC */
      if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) {
-        warn_report("RAM size " RAM_ADDR_FMT " above max supported, "
-                    "reduced to %x", machine->ram_size,
-                    FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE);
-        machine->ram_size = FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE;
+        char *sz = size_to_str(FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE);
+        error_report("RAM size more than %s is not supported", sz);

Yay! Can you use this pattern the other patches too?

You might want to add:


Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

+        g_free(sz);
+        exit(EXIT_FAILURE);
memory_region_allocate_system_memory(&s->ram, NULL, "kzm.ram",

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