Hi Len,
Please replace this patch with the appended one.
I have verified that we are supposed to save/restore the NVS area in the EFI
case too.
Thanks,
Rafael
On Sunday, 26 of October 2008, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rjw@xxxxxxx>
> Subject: x86 hibernate: Mark ACPI NVS memory region at startup
>
> Introduce new initcall for marking the ACPI NVS memory at startup, so
> that it can be saved/restore during hibernation/resume.
>
> Based on a patch by Zhang Rui.
>
> Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
> Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
> ---
> arch/x86/kernel/e820.c | 25 +++++++++++++++++++++++++
> 1 files changed, 25 insertions(+), 0 deletions(-)
>
> diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
> index ce97bf3..e1e63a8 100644
> --- a/arch/x86/kernel/e820.c
> +++ b/arch/x86/kernel/e820.c
> @@ -20,6 +20,7 @@
> #include <linux/pfn.h>
> #include <linux/suspend.h>
> #include <linux/firmware-map.h>
> +#include <linux/efi.h>
>
> #include <asm/pgtable.h>
> #include <asm/page.h>
> @@ -665,6 +666,30 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
> }
> #endif
>
> +#ifdef CONFIG_HIBERNATION
> +/**
> + * Mark ACPI NVS memory region, so that we can save/restore it during
> + * hibernation and the subsequent resume.
> + */
> +static int __init e820_mark_nvs_memory(void)
> +{
> + int i;
> +
> + if (efi_enabled)
> + return 0;
> +
> + for (i = 0; i < e820.nr_map; i++) {
> + struct e820entry *ei = &e820.map[i];
> +
> + if (ei->type == E820_NVS)
> + hibernate_nvs_register(ei->addr, ei->size);
> + }
> +
> + return 0;
> +}
> +core_initcall(e820_mark_nvs_memory);
> +#endif
> +
> /*
> * Early reserved memory areas.
> */
---
From: Rafael J. Wysocki <rjw@xxxxxxx>
Subject: x86 hibernate: Mark ACPI NVS memory region at startup
Introduce new initcall for marking the ACPI NVS memory at startup, so
that it can be saved/restored during hibernation/resume.
Based on a patch by Zhang Rui.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index ce97bf3..261d19c 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -665,6 +665,27 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
}
#endif
+#ifdef CONFIG_HIBERNATION
+/**
+ * Mark ACPI NVS memory region, so that we can save/restore it during
+ * hibernation and the subsequent resume.
+ */
+static int __init e820_mark_nvs_memory(void)
+{
+ int i;
+
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+
+ if (ei->type == E820_NVS)
+ hibernate_nvs_register(ei->addr, ei->size);
+ }
+
+ return 0;
+}
+core_initcall(e820_mark_nvs_memory);
+#endif
+
/*
* Early reserved memory areas.
*/
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