From: "Jan Beulich" <JBeulich@suse.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
xen-devel@lists.xen.org, Keir Fraser <keir@xen.org>,
roger.pau@citrix.com
Subject: Re: [PATCH RFC 03/20] acpi/hvmloader: Initialize vm_gid data outside ACPI code
Date: Thu, 02 Jun 2016 07:03:19 -0600 [thread overview]
Message-ID: <57504AB702000078000F1110@prv-mh.provo.novell.com> (raw)
In-Reply-To: <1459905949-10358-4-git-send-email-boris.ostrovsky@oracle.com>
>>> On 06.04.16 at 03:25, <boris.ostrovsky@oracle.com> wrote:
> --- a/tools/firmware/hvmloader/acpi/build.c
> +++ b/tools/firmware/hvmloader/acpi/build.c
> @@ -448,32 +448,24 @@ static int construct_secondary_tables(unsigned long *table_ptrs,
> *
> * Return 0 if memory failure, != 0 if success
> */
> -static int new_vm_gid(struct acpi_info *acpi_info)
> +static int new_vm_gid(struct acpi_config *config)
> {
> - uint64_t vm_gid[2], *buf;
> - const char * s;
> - char *end;
> -
> - acpi_info->vm_gid_addr = 0;
> -
> - /* read ID and check for 0 */
> - s = xenstore_read("platform/generation-id", "0:0");
> - vm_gid[0] = strtoll(s, &end, 0);
> - vm_gid[1] = 0;
> - if ( end && end[0] == ':' )
> - vm_gid[1] = strtoll(end+1, NULL, 0);
> - if ( !vm_gid[0] && !vm_gid[1] )
> + uint64_t *buf;
> +
> + config->acpi_info.vm_gid_addr = 0;
> +
> + /* check for 0 ID*/
> + if ( !config->vm_gid[0] && !config->vm_gid[1] )
> return 1;
>
> /* copy to allocate BIOS memory */
> - buf = (uint64_t *) mem_alloc(sizeof(vm_gid), 8);
> + buf = (uint64_t *) mem_alloc(sizeof(config->vm_gid), 8);
> if ( !buf )
> return 0;
> - memcpy(buf, vm_gid, sizeof(vm_gid));
> + memcpy(buf, config->vm_gid, sizeof(config->vm_gid));
>
> /* set into ACPI table and HVM param the address */
> - acpi_info->vm_gid_addr = virt_to_phys(buf);
> - hvm_param_set(HVM_PARAM_VM_GENERATION_ID_ADDR, acpi_info->vm_gid_addr);
> + config->acpi_info.vm_gid_addr = virt_to_phys(buf);
Here things get interesting: If different entities are responsible for
filling different parts of acpi_info, I think this should be documented
in the structure definition. Can't this be left to the entity initializing
that structure?
> @@ -875,7 +878,19 @@ void hvmloader_acpi_build_tables(struct acpi_config *config,
> config->acpi_info.pci_hi_len = pci_hi_mem_end - pci_hi_mem_start;
> }
>
> + s = xenstore_read("platform/generation-id", "0:0");
> + if (s) {
Please use hypervisor coding style here; Interestingly you do so ...
> + char *end;
> +
> + config->vm_gid[0] = strtoll(s, &end, 0);
> + config->vm_gid[1] = 0;
> + if ( end && end[0] == ':' )
... here.
Jan
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next prev parent reply other threads:[~2016-06-02 13:03 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 1:25 [PATCH RFC 00/20] Make ACPI builder available to components other than hvmloader Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 01/20] hvmloader: Provide hvmloader_acpi_build_tables() Boris Ostrovsky
2016-06-02 12:42 ` Jan Beulich
2016-06-02 16:39 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 02/20] acpi/hvmloader: Move acpi_info initialization out of ACPI code Boris Ostrovsky
2016-06-02 12:54 ` Jan Beulich
2016-06-02 16:54 ` Boris Ostrovsky
2016-06-03 12:13 ` Jan Beulich
2016-06-03 14:42 ` Boris Ostrovsky
2016-06-03 14:55 ` Jan Beulich
2016-06-03 15:29 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 03/20] acpi/hvmloader: Initialize vm_gid data outside " Boris Ostrovsky
2016-06-02 13:03 ` Jan Beulich [this message]
2016-06-02 17:01 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 04/20] acpi/hvmloader: Decide which SSDTs to build in hvmloader Boris Ostrovsky
2016-06-02 13:07 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 05/20] acpi/hvmloader: Move passthrough initialization from ACPI code Boris Ostrovsky
2016-06-02 13:52 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 06/20] acpi/hvmloader: Collect processor and NUMA info in hvmloader Boris Ostrovsky
2016-06-02 14:05 ` Jan Beulich
2016-06-02 17:18 ` Boris Ostrovsky
2016-06-03 12:16 ` Jan Beulich
2016-06-03 14:49 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 07/20] acpi/hvmloader: Set TIS header address " Boris Ostrovsky
2016-06-02 14:09 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 08/20] acpi/hvmloader: Make providing IOAPIC in MADT optional Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 09/20] acpi/hvmloader: Build WAET optionally Boris Ostrovsky
2016-06-02 14:32 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 10/20] acpi/hvmloader: Provide address of acpi_info as an argument to ACPI code Boris Ostrovsky
2016-06-03 16:03 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 11/20] acpi/hvmloader: Translate all addresses when assigning addresses in ACPI tables Boris Ostrovsky
2016-06-06 10:48 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 12/20] acpi/hvmloader: Link ACPI object files directly Boris Ostrovsky
2016-06-06 11:04 ` Jan Beulich
2016-06-06 14:20 ` Boris Ostrovsky
2016-06-06 14:29 ` Jan Beulich
2016-06-06 14:49 ` Boris Ostrovsky
2016-06-06 14:57 ` Jan Beulich
2016-06-06 15:31 ` Andrew Cooper
2016-06-06 15:41 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 13/20] acpi/hvmloader: Add stdio.h, string.h and x86.h Boris Ostrovsky
2016-06-06 11:31 ` Jan Beulich
2016-06-06 15:08 ` Boris Ostrovsky
2016-06-06 15:22 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 14/20] acpi/hvmloader: Replace mem_alloc() and virt_to_phys() with memory ops Boris Ostrovsky
2016-06-06 12:58 ` Jan Beulich
2016-06-06 15:46 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 15/20] acpi: Move ACPI code to xen/common/libacpi Boris Ostrovsky
2016-06-06 13:05 ` Jan Beulich
2016-06-06 16:09 ` Boris Ostrovsky
2016-06-07 6:20 ` Jan Beulich
2016-06-07 12:24 ` Roger Pau Monné
2016-06-07 14:32 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 16/20] x86/vlapic: Don't try to accept 8259 interrupt if !has_vpic() Boris Ostrovsky
2016-06-03 16:14 ` Jan Beulich
2016-06-03 17:50 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 17/20] x86: Allow LAPIC-only emulation_flags for HVM guests Boris Ostrovsky
2016-06-03 16:18 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 18/20] libxc/acpi: Build ACPI tables for HVMlite guests Boris Ostrovsky
2016-06-02 16:26 ` Roger Pau Monné
2016-06-06 12:03 ` Wei Liu
2016-06-06 15:15 ` Boris Ostrovsky
2016-06-16 8:54 ` Wei Liu
2016-06-16 13:07 ` Boris Ostrovsky
2016-06-06 13:29 ` Jan Beulich
2016-06-06 16:59 ` Boris Ostrovsky
2016-06-07 6:17 ` Jan Beulich
2016-06-07 13:59 ` Boris Ostrovsky
2016-06-07 14:10 ` Jan Beulich
2016-06-07 14:47 ` Boris Ostrovsky
2016-06-07 15:00 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 19/20] acpi: Set HW_REDUCED_ACPI in FADT if IOAPIC is not supported Boris Ostrovsky
2016-06-06 13:38 ` Jan Beulich
2016-06-06 17:31 ` Boris Ostrovsky
2016-06-07 6:06 ` Jan Beulich
2016-06-07 14:02 ` Boris Ostrovsky
2016-06-07 14:12 ` Jan Beulich
2016-06-07 15:17 ` Boris Ostrovsky
2016-06-07 15:41 ` Jan Beulich
2016-06-08 22:04 ` Boris Ostrovsky
2016-06-09 8:13 ` Roger Pau Monné
2016-06-09 8:41 ` Jan Beulich
2016-06-09 14:09 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 20/20] acpi: Make ACPI builder available to hypervisor code Boris Ostrovsky
2016-06-06 13:48 ` Jan Beulich
2016-05-09 20:10 ` [PATCH RFC 00/20] Make ACPI builder available to components other than hvmloader Boris Ostrovsky
2016-05-10 7:25 ` Jan Beulich
2016-06-02 12:40 ` Jan Beulich
2016-06-02 16:37 ` Boris Ostrovsky
2016-06-03 7:18 ` Roger Pau Monné
2016-06-03 10:08 ` Jan Beulich
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