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[Qemu-devel] [PATCH 04/10] hw/arm_boot.c: Check for RAM sizes exceeding
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 04/10] hw/arm_boot.c: Check for RAM sizes exceeding ATAGS capacity |
Date: |
Fri, 20 Jul 2012 16:00:24 +0100 |
The legacy ATAGS format for passing information to the kernel only
allows RAM sizes which fit in 32 bits; enforce this restriction
rather than silently doing something weird.
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Peter A. G. Crosthwaite <address@hidden>
---
hw/arm_boot.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/hw/arm_boot.c b/hw/arm_boot.c
index 29ae324..af71ed6 100644
--- a/hw/arm_boot.c
+++ b/hw/arm_boot.c
@@ -399,6 +399,12 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info
*info)
bootloader[5] = dtb_start;
} else {
bootloader[5] = info->loader_start + KERNEL_ARGS_ADDR;
+ if (info->ram_size >= (1ULL << 32)) {
+ fprintf(stderr, "qemu: RAM size must be less than 4GB to boot"
+ " Linux kernel using ATAGS (try passing a device tree"
+ " using -dtb)\n");
+ exit(1);
+ }
}
bootloader[6] = entry;
for (n = 0; n < sizeof(bootloader) / 4; n++) {
--
1.7.5.4
- [Qemu-devel] [PATCH 10/10] hw/cadence_gem: Make rx_desc_addr and tx_desc_addr uint32_t, (continued)
- [Qemu-devel] [PATCH 10/10] hw/cadence_gem: Make rx_desc_addr and tx_desc_addr uint32_t, Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 08/10] i.MX31: Interrupt Controller, Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 07/10] i.MX31: Timers, Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 09/10] i.MX31: KZM-ARM11-01 evaluation board, Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 01/10] ARM: hw/exynos4210_mct.c: Fix a bug which hangs Linux kernel., Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 06/10] i.MX31: Clock Control Module, Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 03/10] hw/exynos4210.c: Fix misleading initialization of IROM mirror, Peter Maydell, 2012/07/04
- [Qemu-devel] [PATCH 05/10] i.MX: UART support, Peter Maydell, 2012/07/04
- Re: [Qemu-devel] [PULL 00/10] arm-devs queue, Blue Swirl, 2012/07/07
- [Qemu-devel] [PULL 00/10] arm-devs queue, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 04/10] hw/arm_boot.c: Check for RAM sizes exceeding ATAGS capacity,
Peter Maydell <=
- [Qemu-devel] [PATCH 09/10] hw/exynos4210_rtc.c: remove unnecessary code, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 08/10] hw/exynos4210_rtc.c: Fix calculating for value of year, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 06/10] hw/arm_boot.c: Support DTBs which use 64 bit addresses, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 03/10] hw/arm_boot.c: Consistently use ram_size from arm_boot_info struct, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 10/10] exynos4210: add Exynos4210 i2c implementation, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 07/10] hw/vexpress.c: Allow >4GB of RAM for Cortex-A15 daughterboard, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 01/10] hw/pl011.c: Avoid crash on read when no chr backend present, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 05/10] device_tree: Add support for reading device tree properties, Peter Maydell, 2012/07/20
- [Qemu-devel] [PATCH 02/10] hw/arm_boot.c: Make ram_size a uint64_t, Peter Maydell, 2012/07/20