From: Baoquan He <bhe@redhat.com>
To: "Fan, Chao" <fanc.fnst@cn.fujitsu.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
"bp@alien8.de" <bp@alien8.de>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"keescook@chromium.org" <keescook@chromium.org>,
"msys.mizuma@gmail.com" <msys.mizuma@gmail.com>,
"Indoh, Takao" <indou.takao@fujitsu.com>,
"Cao, Jin" <caoj.fnst@cn.fujitsu.com>
Subject: Re: [PATCH v9 6/8] x86/boot: Dig out SRAT table from RSDP and find immovable memory
Date: Mon, 22 Oct 2018 14:08:14 +0800 [thread overview]
Message-ID: <20181022060814.GL1885@192.168.1.4> (raw)
In-Reply-To: <B74D54765E346E448CD6C7B7B0334C258D95543F@G08CNEXMBSHAD01.g08.fujitsu.local>
On 10/22/18 at 05:29am, Fan, Chao wrote:
> On Sun, Oct 21, 2018 at 10:34:58AM +0800, Baoquan He wrote:
> >On 10/17/18 at 06:20pm, Chao Fan wrote:
> >> + if (!cmdline_find_option_bool("movable_node") ||
> >> + cmdline_find_option_arg("acpi", "off", 3))
> >> + return;
> >> +
> >> + table_header = get_acpi_srat_table();
> >> + if (!table_header)
> >> + return;
> >> +
> >> + table_end = (unsigned long)table_header + table_header->length;
> >> +
> >> + table = (struct acpi_subtable_header *)
> >> + ((unsigned long)table_header + sizeof(struct acpi_table_srat));
> >> +
> >> + while (((unsigned long)table) +
> >> + sizeof(struct acpi_subtable_header) < table_end) {
> >> + if (table->type == ACPI_SRAT_TYPE_MEMORY_AFFINITY) {
> >> + ma = (struct acpi_srat_mem_affinity *)table;
> >> + if (!(ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)) {
> >> + immovable_mem[i].start = ma->base_address;
> >> + immovable_mem[i].size = ma->length;
> >> + i++;
> >> + }
> >> +
> >> + if (i >= MAX_NUMNODES*2)
> > No warning message printed in this case?
>
> I will add. BTW, what message is appropriate?
> I can't figure out in what condition, i >= MAX_NUMNODES*2.
Do you mean it's impossible to happen?
next prev parent reply other threads:[~2018-10-22 6:08 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-17 10:20 [PATCH v9 0/8] x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory Chao Fan
2018-10-17 10:20 ` [PATCH v9 1/8] x86/boot: Introduce cmdline_find_option_arg()to detect if option=arg in cmdline Chao Fan
2018-10-18 4:01 ` Baoquan He
2018-10-18 6:15 ` Chao Fan
2018-10-17 10:20 ` [PATCH v9 2/8] x86/boot: Copy kstrtoull() to compressed period Chao Fan
2018-10-18 4:03 ` Baoquan He
2018-10-18 5:51 ` Chao Fan
2018-10-18 6:01 ` Baoquan He
2018-10-18 6:08 ` Chao Fan
2018-10-17 10:20 ` [PATCH v9 3/8] x86/boot: Add efi_get_rsdp_addr() to dig out RSDP from EFI table Chao Fan
2018-10-18 4:35 ` Baoquan He
2018-10-18 5:54 ` Chao Fan
2018-10-18 5:56 ` Baoquan He
2018-10-18 6:10 ` Chao Fan
2018-10-17 10:20 ` [PATCH v9 4/8] x86/boot: Add bios_get_rsdp_addr() to search RSDP in memory Chao Fan
2018-10-17 10:20 ` [PATCH v9 5/8] x86/boot: Add get_acpi_rsdp() to parse RSDP in cmdlien from kexec Chao Fan
2018-10-21 2:26 ` Baoquan He
2018-10-22 5:30 ` Fan, Chao
2018-10-22 6:06 ` Baoquan He
2018-10-22 7:30 ` Chao Fan
2018-10-22 7:36 ` Baoquan He
2018-10-17 10:20 ` [PATCH v9 6/8] x86/boot: Dig out SRAT table from RSDP and find immovable memory Chao Fan
2018-10-18 6:12 ` Chao Fan
2018-10-21 2:34 ` Baoquan He
2018-10-22 5:29 ` Fan, Chao
2018-10-22 6:08 ` Baoquan He [this message]
2018-10-17 10:20 ` [PATCH v9 7/8] x86/boot/KASLR: Walk srat tables to filter " Chao Fan
2018-10-18 4:23 ` Baoquan He
2018-10-18 5:56 ` Chao Fan
2018-10-17 10:20 ` [PATCH v9 8/8] x86/boot/KASLR: Limit kaslr to choosing the " Chao Fan
2018-10-18 4:21 ` Baoquan He
2018-10-22 10:13 ` Chao Fan
2018-10-22 10:24 ` Baoquan He
2018-10-22 10:49 ` Chao Fan
2018-10-18 3:59 ` [PATCH v9 0/8] x86/boot/KASLR: Parse ACPI table and limit kaslr in " Baoquan He
2018-10-18 5:48 ` Chao Fan
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