From: Baoquan He <bhe@redhat.com>
To: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, Dave Young <dyoung@redhat.com>,
Vivek Goyal <vgoyal@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
kexec@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
devicetree@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
linux-doc@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
Feng Zhou <zhoufeng.zf@bytedance.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Chen Zhou <dingguo.cz@antgroup.com>
Subject: Re: [PATCH v17 03/10] x86: kdump: use macro CRASH_ADDR_LOW_MAX in functions reserve_crashkernel()
Date: Tue, 14 Dec 2021 16:54:40 +0800 [thread overview]
Message-ID: <20211214085440.GA3023@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20211210065533.2023-4-thunder.leizhen@huawei.com>
On 12/10/21 at 02:55pm, Zhen Lei wrote:
> From: Chen Zhou <chenzhou10@huawei.com>
>
> To make the functions reserve_crashkernel() as generic,
> replace some hard-coded numbers with macro CRASH_ADDR_LOW_MAX.
>
> Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
If you made change to this patch, please remove the old Acked-by. If you
didn't contribute change, Signed-off-by should be taken off.
Compared this with the version I acked, only see
memblock_free() -> memblock_phys_free() update which should be done
from the rebase.
So ack this one again, and please also consider adding Co-developed-by.
> Tested-by: John Donnelly <John.p.donnelly@oracle.com>
> Tested-by: Dave Kleikamp <dave.kleikamp@oracle.com>
> Acked-by: Baoquan He <bhe@redhat.com>
> ---
> arch/x86/kernel/setup.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 6424ee4f23da2cf..bb2a0973b98059e 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -489,8 +489,9 @@ static void __init reserve_crashkernel(void)
> if (!crash_base) {
> /*
> * Set CRASH_ADDR_LOW_MAX upper bound for crash memory,
> - * crashkernel=x,high reserves memory over 4G, also allocates
> - * 256M extra low memory for DMA buffers and swiotlb.
> + * crashkernel=x,high reserves memory over CRASH_ADDR_LOW_MAX,
> + * also allocates 256M extra low memory for DMA buffers
> + * and swiotlb.
> * But the extra memory is not required for all machines.
> * So try low memory first and fall back to high memory
> * unless "crashkernel=size[KMG],high" is specified.
> @@ -518,7 +519,7 @@ static void __init reserve_crashkernel(void)
> }
> }
>
> - if (crash_base >= (1ULL << 32) && reserve_crashkernel_low()) {
> + if (crash_base >= CRASH_ADDR_LOW_MAX && reserve_crashkernel_low()) {
> memblock_phys_free(crash_base, crash_size);
> return;
> }
> --
> 2.25.1
>
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, Dave Young <dyoung@redhat.com>,
Vivek Goyal <vgoyal@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
kexec@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
devicetree@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
linux-doc@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
Feng Zhou <zhoufeng.zf@bytedance.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Chen Zhou <dingguo.cz@antgroup.com>
Subject: Re: [PATCH v17 03/10] x86: kdump: use macro CRASH_ADDR_LOW_MAX in functions reserve_crashkernel()
Date: Tue, 14 Dec 2021 16:54:40 +0800 [thread overview]
Message-ID: <20211214085440.GA3023@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20211210065533.2023-4-thunder.leizhen@huawei.com>
On 12/10/21 at 02:55pm, Zhen Lei wrote:
> From: Chen Zhou <chenzhou10@huawei.com>
>
> To make the functions reserve_crashkernel() as generic,
> replace some hard-coded numbers with macro CRASH_ADDR_LOW_MAX.
>
> Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
If you made change to this patch, please remove the old Acked-by. If you
didn't contribute change, Signed-off-by should be taken off.
Compared this with the version I acked, only see
memblock_free() -> memblock_phys_free() update which should be done
from the rebase.
So ack this one again, and please also consider adding Co-developed-by.
> Tested-by: John Donnelly <John.p.donnelly@oracle.com>
> Tested-by: Dave Kleikamp <dave.kleikamp@oracle.com>
> Acked-by: Baoquan He <bhe@redhat.com>
> ---
> arch/x86/kernel/setup.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 6424ee4f23da2cf..bb2a0973b98059e 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -489,8 +489,9 @@ static void __init reserve_crashkernel(void)
> if (!crash_base) {
> /*
> * Set CRASH_ADDR_LOW_MAX upper bound for crash memory,
> - * crashkernel=x,high reserves memory over 4G, also allocates
> - * 256M extra low memory for DMA buffers and swiotlb.
> + * crashkernel=x,high reserves memory over CRASH_ADDR_LOW_MAX,
> + * also allocates 256M extra low memory for DMA buffers
> + * and swiotlb.
> * But the extra memory is not required for all machines.
> * So try low memory first and fall back to high memory
> * unless "crashkernel=size[KMG],high" is specified.
> @@ -518,7 +519,7 @@ static void __init reserve_crashkernel(void)
> }
> }
>
> - if (crash_base >= (1ULL << 32) && reserve_crashkernel_low()) {
> + if (crash_base >= CRASH_ADDR_LOW_MAX && reserve_crashkernel_low()) {
> memblock_phys_free(crash_base, crash_size);
> return;
> }
> --
> 2.25.1
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, Dave Young <dyoung@redhat.com>,
Vivek Goyal <vgoyal@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
kexec@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
devicetree@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
linux-doc@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
Feng Zhou <zhoufeng.zf@bytedance.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Chen Zhou <dingguo.cz@antgroup.com>
Subject: Re: [PATCH v17 03/10] x86: kdump: use macro CRASH_ADDR_LOW_MAX in functions reserve_crashkernel()
Date: Tue, 14 Dec 2021 16:54:40 +0800 [thread overview]
Message-ID: <20211214085440.GA3023@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20211210065533.2023-4-thunder.leizhen@huawei.com>
On 12/10/21 at 02:55pm, Zhen Lei wrote:
> From: Chen Zhou <chenzhou10@huawei.com>
>
> To make the functions reserve_crashkernel() as generic,
> replace some hard-coded numbers with macro CRASH_ADDR_LOW_MAX.
>
> Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
If you made change to this patch, please remove the old Acked-by. If you
didn't contribute change, Signed-off-by should be taken off.
Compared this with the version I acked, only see
memblock_free() -> memblock_phys_free() update which should be done
from the rebase.
So ack this one again, and please also consider adding Co-developed-by.
> Tested-by: John Donnelly <John.p.donnelly@oracle.com>
> Tested-by: Dave Kleikamp <dave.kleikamp@oracle.com>
> Acked-by: Baoquan He <bhe@redhat.com>
> ---
> arch/x86/kernel/setup.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 6424ee4f23da2cf..bb2a0973b98059e 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -489,8 +489,9 @@ static void __init reserve_crashkernel(void)
> if (!crash_base) {
> /*
> * Set CRASH_ADDR_LOW_MAX upper bound for crash memory,
> - * crashkernel=x,high reserves memory over 4G, also allocates
> - * 256M extra low memory for DMA buffers and swiotlb.
> + * crashkernel=x,high reserves memory over CRASH_ADDR_LOW_MAX,
> + * also allocates 256M extra low memory for DMA buffers
> + * and swiotlb.
> * But the extra memory is not required for all machines.
> * So try low memory first and fall back to high memory
> * unless "crashkernel=size[KMG],high" is specified.
> @@ -518,7 +519,7 @@ static void __init reserve_crashkernel(void)
> }
> }
>
> - if (crash_base >= (1ULL << 32) && reserve_crashkernel_low()) {
> + if (crash_base >= CRASH_ADDR_LOW_MAX && reserve_crashkernel_low()) {
> memblock_phys_free(crash_base, crash_size);
> return;
> }
> --
> 2.25.1
>
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2021-12-14 8:55 UTC|newest]
Thread overview: 198+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-10 6:55 [PATCH v17 00/10] support reserving crashkernel above 4G on arm64 kdump Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` [PATCH v17 01/10] x86: kdump: replace the hard-coded alignment with macro CRASH_ALIGN Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 13:17 ` Baoquan He
2021-12-13 13:17 ` Baoquan He
2021-12-13 13:17 ` Baoquan He
2021-12-14 8:41 ` Leizhen (ThunderTown)
2021-12-14 8:41 ` Leizhen (ThunderTown)
2021-12-14 8:41 ` Leizhen (ThunderTown)
2021-12-13 14:26 ` john.p.donnelly
2021-12-13 14:26 ` john.p.donnelly
2021-12-13 14:26 ` john.p.donnelly
2021-12-13 19:54 ` Borislav Petkov
2021-12-13 19:54 ` Borislav Petkov
2021-12-13 19:54 ` Borislav Petkov
2021-12-14 9:27 ` Leizhen (ThunderTown)
2021-12-14 9:27 ` Leizhen (ThunderTown)
2021-12-14 9:27 ` Leizhen (ThunderTown)
2021-12-10 6:55 ` [PATCH v17 02/10] x86: kdump: make the lower bound of crash kernel reservation consistent Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 13:37 ` Baoquan He
2021-12-13 13:37 ` Baoquan He
2021-12-13 13:37 ` Baoquan He
2021-12-14 8:48 ` Leizhen (ThunderTown)
2021-12-14 8:48 ` Leizhen (ThunderTown)
2021-12-14 8:48 ` Leizhen (ThunderTown)
2021-12-13 14:27 ` john.p.donnelly
2021-12-13 14:27 ` john.p.donnelly
2021-12-13 14:27 ` john.p.donnelly
2021-12-14 19:07 ` Borislav Petkov
2021-12-14 19:07 ` Borislav Petkov
2021-12-14 19:07 ` Borislav Petkov
2021-12-14 19:24 ` Catalin Marinas
2021-12-14 19:24 ` Catalin Marinas
2021-12-14 19:24 ` Catalin Marinas
2021-12-15 2:10 ` Leizhen (ThunderTown)
2021-12-15 2:10 ` Leizhen (ThunderTown)
2021-12-15 2:10 ` Leizhen (ThunderTown)
2021-12-15 3:42 ` Baoquan He
2021-12-15 3:42 ` Baoquan He
2021-12-15 3:42 ` Baoquan He
2021-12-15 11:01 ` Catalin Marinas
2021-12-15 11:01 ` Catalin Marinas
2021-12-15 11:01 ` Catalin Marinas
2021-12-15 11:16 ` Baoquan He
2021-12-15 11:16 ` Baoquan He
2021-12-15 11:16 ` Baoquan He
2021-12-15 11:45 ` Leizhen (ThunderTown)
2021-12-15 11:45 ` Leizhen (ThunderTown)
2021-12-15 11:45 ` Leizhen (ThunderTown)
2021-12-10 6:55 ` [PATCH v17 03/10] x86: kdump: use macro CRASH_ADDR_LOW_MAX in functions reserve_crashkernel() Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 14:28 ` john.p.donnelly
2021-12-13 14:28 ` john.p.donnelly
2021-12-13 14:28 ` john.p.donnelly
2021-12-14 8:54 ` Baoquan He [this message]
2021-12-14 8:54 ` Baoquan He
2021-12-14 8:54 ` Baoquan He
2021-12-14 9:38 ` Borislav Petkov
2021-12-14 9:38 ` Borislav Petkov
2021-12-14 9:38 ` Borislav Petkov
2021-12-14 9:56 ` Baoquan He
2021-12-14 9:56 ` Baoquan He
2021-12-14 9:56 ` Baoquan He
2021-12-14 14:24 ` Borislav Petkov
2021-12-14 14:24 ` Borislav Petkov
2021-12-14 14:24 ` Borislav Petkov
2021-12-15 6:01 ` Baoquan He
2021-12-15 6:01 ` Baoquan He
2021-12-15 6:01 ` Baoquan He
2021-12-15 13:28 ` Borislav Petkov
2021-12-15 13:28 ` Borislav Petkov
2021-12-15 13:28 ` Borislav Petkov
2021-12-16 1:10 ` Baoquan He
2021-12-16 1:10 ` Baoquan He
2021-12-16 1:10 ` Baoquan He
2021-12-16 2:46 ` Leizhen (ThunderTown)
2021-12-16 2:46 ` Leizhen (ThunderTown)
2021-12-16 2:46 ` Leizhen (ThunderTown)
2021-12-16 11:07 ` Borislav Petkov
2021-12-16 11:07 ` Borislav Petkov
2021-12-16 11:07 ` Borislav Petkov
2021-12-16 12:08 ` Leizhen (ThunderTown)
2021-12-16 12:08 ` Leizhen (ThunderTown)
2021-12-16 12:08 ` Leizhen (ThunderTown)
2021-12-16 12:23 ` Leizhen (ThunderTown)
2021-12-16 12:23 ` Leizhen (ThunderTown)
2021-12-16 12:23 ` Leizhen (ThunderTown)
2021-12-16 14:48 ` Borislav Petkov
2021-12-16 14:48 ` Borislav Petkov
2021-12-16 14:48 ` Borislav Petkov
2021-12-17 2:51 ` Leizhen (ThunderTown)
2021-12-17 2:51 ` Leizhen (ThunderTown)
2021-12-17 2:51 ` Leizhen (ThunderTown)
2021-12-21 22:23 ` Borislav Petkov
2021-12-21 22:23 ` Borislav Petkov
2021-12-21 22:23 ` Borislav Petkov
2021-12-16 10:55 ` Borislav Petkov
2021-12-16 10:55 ` Borislav Petkov
2021-12-16 10:55 ` Borislav Petkov
2021-12-16 14:11 ` Baoquan He
2021-12-16 14:11 ` Baoquan He
2021-12-16 14:11 ` Baoquan He
2021-12-16 14:58 ` Borislav Petkov
2021-12-16 14:58 ` Borislav Petkov
2021-12-16 14:58 ` Borislav Petkov
2021-12-10 6:55 ` [PATCH v17 04/10] x86: kdump: move xen_pv_domain() check and insert_resource() to setup_arch() Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 14:29 ` john.p.donnelly
2021-12-13 14:29 ` john.p.donnelly
2021-12-13 14:29 ` john.p.donnelly
2021-12-14 11:40 ` Leizhen (ThunderTown)
2021-12-14 11:40 ` Leizhen (ThunderTown)
2021-12-14 11:40 ` Leizhen (ThunderTown)
2021-12-15 8:56 ` Leizhen (ThunderTown)
2021-12-15 8:56 ` Leizhen (ThunderTown)
2021-12-15 8:56 ` Leizhen (ThunderTown)
2021-12-15 9:22 ` Baoquan He
2021-12-15 9:22 ` Baoquan He
2021-12-15 9:22 ` Baoquan He
2021-12-10 6:55 ` [PATCH v17 05/10] x86: kdump: move reserve_crashkernel[_low]() into crash_core.c Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 14:30 ` john.p.donnelly
2021-12-13 14:30 ` john.p.donnelly
2021-12-13 14:30 ` john.p.donnelly
2021-12-14 10:45 ` Baoquan He
2021-12-14 10:45 ` Baoquan He
2021-12-14 10:45 ` Baoquan He
2021-12-14 12:38 ` Leizhen (ThunderTown)
2021-12-14 12:38 ` Leizhen (ThunderTown)
2021-12-14 12:38 ` Leizhen (ThunderTown)
2021-12-16 11:17 ` Borislav Petkov
2021-12-16 11:17 ` Borislav Petkov
2021-12-16 11:17 ` Borislav Petkov
2021-12-16 13:15 ` Leizhen (ThunderTown)
2021-12-16 13:15 ` Leizhen (ThunderTown)
2021-12-16 13:15 ` Leizhen (ThunderTown)
2021-12-16 14:51 ` Borislav Petkov
2021-12-16 14:51 ` Borislav Petkov
2021-12-16 14:51 ` Borislav Petkov
2021-12-10 6:55 ` [PATCH v17 06/10] arm64: kdump: introduce some macros for crash kernel reservation Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 14:30 ` john.p.donnelly
2021-12-13 14:30 ` john.p.donnelly
2021-12-13 14:30 ` john.p.donnelly
2021-12-10 6:55 ` [PATCH v17 07/10] arm64: kdump: reimplement crashkernel=X Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 14:31 ` john.p.donnelly
2021-12-13 14:31 ` john.p.donnelly
2021-12-13 14:31 ` john.p.donnelly
2021-12-10 6:55 ` [PATCH v17 08/10] of: fdt: Aggregate the processing of "linux,usable-memory-range" Zhen Lei
2021-12-10 6:55 ` [PATCH v17 08/10] of: fdt: Aggregate the processing of "linux, usable-memory-range" Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 16:39 ` [PATCH v17 08/10] of: fdt: Aggregate the processing of "linux,usable-memory-range" Rob Herring
2021-12-10 16:39 ` Rob Herring
2021-12-10 16:39 ` Rob Herring
2021-12-13 14:34 ` john.p.donnelly
2021-12-13 14:34 ` john.p.donnelly
2021-12-13 14:34 ` john.p.donnelly
2021-12-10 6:55 ` [PATCH v17 09/10] of: fdt: Add memory for devices by DT property "linux,usable-memory-range" Zhen Lei
2021-12-10 6:55 ` [PATCH v17 09/10] of: fdt: Add memory for devices by DT property "linux, usable-memory-range" Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 16:43 ` [PATCH v17 09/10] of: fdt: Add memory for devices by DT property "linux,usable-memory-range" Rob Herring
2021-12-10 16:43 ` Rob Herring
2021-12-10 16:43 ` Rob Herring
2021-12-13 14:33 ` john.p.donnelly
2021-12-13 14:33 ` john.p.donnelly
2021-12-13 14:33 ` john.p.donnelly
2021-12-10 6:55 ` [PATCH v17 10/10] kdump: update Documentation about crashkernel Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-10 6:55 ` Zhen Lei
2021-12-13 14:34 ` john.p.donnelly
2021-12-13 14:34 ` john.p.donnelly
2021-12-13 14:34 ` john.p.donnelly
2021-12-10 7:15 ` [PATCH v17 00/10] support reserving crashkernel above 4G on arm64 kdump Kefeng Wang
2021-12-10 7:15 ` Kefeng Wang
2021-12-10 7:15 ` Kefeng Wang
2021-12-13 18:50 ` Will Deacon
2021-12-13 18:50 ` Will Deacon
2021-12-13 18:50 ` Will Deacon
2021-12-13 14:37 ` john.p.donnelly
2021-12-13 14:37 ` john.p.donnelly
2021-12-13 14:37 ` john.p.donnelly
2021-12-13 18:56 ` Catalin Marinas
2021-12-13 18:56 ` Catalin Marinas
2021-12-13 18:56 ` Catalin Marinas
2021-12-13 18:57 ` Borislav Petkov
2021-12-13 18:57 ` Borislav Petkov
2021-12-13 18:57 ` Borislav Petkov
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