From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752688Ab3AOMaY (ORCPT ); Tue, 15 Jan 2013 07:30:24 -0500 Received: from mga14.intel.com ([143.182.124.37]:23472 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750777Ab3AOMaX (ORCPT ); Tue, 15 Jan 2013 07:30:23 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,473,1355126400"; d="scan'208,223";a="244084702" From: "Liu, Jinsong" To: Konrad Rzeszutek Wilk , "xen-devel@lists.xensource.com" , "linux-kernel@vger.kernel.org" CC: Konrad Rzeszutek Wilk Subject: [PATCH V1 1/3] Xen stub driver for CPU hotplug Thread-Topic: [PATCH V1 1/3] Xen stub driver for CPU hotplug Thread-Index: Ac3zHBQL8PY/7ecyRCyznwJrYWrqNg== Date: Tue, 15 Jan 2013 12:30:19 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: multipart/mixed; boundary="_002_DE8DF0795D48FD4CA783C40EC82923353C3DB4SHSMSX101ccrcorpi_" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --_002_DE8DF0795D48FD4CA783C40EC82923353C3DB4SHSMSX101ccrcorpi_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable >>From 110b4ef3b8ebefeaf68832dd8ef8aa916a782e89 Mon Sep 17 00:00:00 2001 From: Liu Jinsong Date: Mon, 14 Jan 2013 15:19:30 +0800 Subject: [PATCH 1/3] Xen stub driver for CPU hotplug Add Xen stub driver for CPU hotplug, early occupy to block native, will be replaced later by real Xen processor driver module. Signed-off-by: Liu Jinsong --- drivers/xen/xen-stub.c | 34 ++++++++++++++++++++++++++++++++-- include/xen/acpi.h | 6 ++++++ 2 files changed, 38 insertions(+), 2 deletions(-) diff --git a/drivers/xen/xen-stub.c b/drivers/xen/xen-stub.c index 01a49e3..681e9cc 100644 --- a/drivers/xen/xen-stub.c +++ b/drivers/xen/xen-stub.c @@ -28,12 +28,13 @@ #include #include =20 + +#ifdef CONFIG_ACPI + /*-------------------------------------------- stub driver for Xen memory hotplug --------------------------------------------*/ =20 -#ifdef CONFIG_ACPI - static const struct acpi_device_id memory_device_ids[] =3D { {ACPI_MEMORY_DEVICE_HID, 0}, {"", 0}, @@ -57,4 +58,33 @@ static int __init xen_stub_memory_device_init(void) } subsys_initcall(xen_stub_memory_device_init); =20 + +/*-------------------------------------------- + stub driver for Xen cpu hotplug +--------------------------------------------*/ + +static const struct acpi_device_id processor_device_ids[] =3D { + {ACPI_PROCESSOR_OBJECT_HID, 0}, + {ACPI_PROCESSOR_DEVICE_HID, 0}, + {"", 0}, +}; + +struct acpi_driver xen_stub_processor_driver =3D { + /* same name as native processor driver to block native loaded */ + .name =3D "processor", + .class =3D ACPI_PROCESSOR_CLASS, + .ids =3D processor_device_ids, +}; +EXPORT_SYMBOL_GPL(xen_stub_processor_driver); + +static int __init xen_stub_processor_init(void) +{ + if (!xen_initial_domain()) + return -ENODEV; + + /* just reserve space for Xen, block native driver loaded */ + return acpi_bus_register_driver(&xen_stub_processor_driver); +} +subsys_initcall(xen_stub_processor_init); + #endif diff --git a/include/xen/acpi.h b/include/xen/acpi.h index 7366e58..1c99eb5 100644 --- a/include/xen/acpi.h +++ b/include/xen/acpi.h @@ -46,6 +46,12 @@ =20 extern struct acpi_driver xen_stub_memory_device_driver; =20 +#define ACPI_PROCESSOR_CLASS "processor" +#define ACPI_PROCESSOR_DEVICE_HID "ACPI0007" +#define ACPI_PROCESSOR_DEVICE_NAME "Processor" + +extern struct acpi_driver xen_stub_processor_driver; + int xen_acpi_notify_hypervisor_state(u8 sleep_state, u32 pm1a_cnt, u32 pm1b_cnd); =20 --=20 1.7.1 --_002_DE8DF0795D48FD4CA783C40EC82923353C3DB4SHSMSX101ccrcorpi_ Content-Type: application/octet-stream; name="0001-Xen-stub-driver-for-CPU-hotplug.patch" Content-Description: 0001-Xen-stub-driver-for-CPU-hotplug.patch Content-Disposition: attachment; filename="0001-Xen-stub-driver-for-CPU-hotplug.patch"; size=2536; creation-date="Tue, 15 Jan 2013 12:28:09 GMT"; modification-date="Tue, 15 Jan 2013 20:17:14 GMT" Content-Transfer-Encoding: base64 RnJvbSAxMTBiNGVmM2I4ZWJlZmVhZjY4ODMyZGQ4ZWY4YWE5MTZhNzgyZTg5IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBMaXUgSmluc29uZyA8amluc29uZy5saXVAaW50ZWwuY29tPgpE YXRlOiBNb24sIDE0IEphbiAyMDEzIDE1OjE5OjMwICswODAwClN1YmplY3Q6IFtQQVRDSCAxLzNd IFhlbiBzdHViIGRyaXZlciBmb3IgQ1BVIGhvdHBsdWcKCkFkZCBYZW4gc3R1YiBkcml2ZXIgZm9y IENQVSBob3RwbHVnLCBlYXJseSBvY2N1cHkgdG8gYmxvY2sgbmF0aXZlLAp3aWxsIGJlIHJlcGxh Y2VkIGxhdGVyIGJ5IHJlYWwgWGVuIHByb2Nlc3NvciBkcml2ZXIgbW9kdWxlLgoKU2lnbmVkLW9m Zi1ieTogTGl1IEppbnNvbmcgPGppbnNvbmcubGl1QGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL3hl bi94ZW4tc3R1Yi5jIHwgICAzNCArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tCiBp bmNsdWRlL3hlbi9hY3BpLmggICAgIHwgICAgNiArKysrKysKIDIgZmlsZXMgY2hhbmdlZCwgMzgg aW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL3hlbi94 ZW4tc3R1Yi5jIGIvZHJpdmVycy94ZW4veGVuLXN0dWIuYwppbmRleCAwMWE0OWUzLi42ODFlOWNj IDEwMDY0NAotLS0gYS9kcml2ZXJzL3hlbi94ZW4tc3R1Yi5jCisrKyBiL2RyaXZlcnMveGVuL3hl bi1zdHViLmMKQEAgLTI4LDEyICsyOCwxMyBAQAogI2luY2x1ZGUgPGFjcGkvYWNwaV9kcml2ZXJz Lmg+CiAjaW5jbHVkZSA8eGVuL2FjcGkuaD4KIAorCisjaWZkZWYgQ09ORklHX0FDUEkKKwogLyot LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQogCXN0dWIgZHJpdmVy IGZvciBYZW4gbWVtb3J5IGhvdHBsdWcKIC0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tKi8KIAotI2lmZGVmIENPTkZJR19BQ1BJCi0KIHN0YXRpYyBjb25zdCBzdHJ1 Y3QgYWNwaV9kZXZpY2VfaWQgbWVtb3J5X2RldmljZV9pZHNbXSA9IHsKIAl7QUNQSV9NRU1PUllf REVWSUNFX0hJRCwgMH0sCiAJeyIiLCAwfSwKQEAgLTU3LDQgKzU4LDMzIEBAIHN0YXRpYyBpbnQg X19pbml0IHhlbl9zdHViX21lbW9yeV9kZXZpY2VfaW5pdCh2b2lkKQogfQogc3Vic3lzX2luaXRj YWxsKHhlbl9zdHViX21lbW9yeV9kZXZpY2VfaW5pdCk7CiAKKworLyotLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQorCXN0dWIgZHJpdmVyIGZvciBYZW4gY3B1IGhv dHBsdWcKKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tKi8KKwor c3RhdGljIGNvbnN0IHN0cnVjdCBhY3BpX2RldmljZV9pZCBwcm9jZXNzb3JfZGV2aWNlX2lkc1td ID0geworCXtBQ1BJX1BST0NFU1NPUl9PQkpFQ1RfSElELCAwfSwKKwl7QUNQSV9QUk9DRVNTT1Jf REVWSUNFX0hJRCwgMH0sCisJeyIiLCAwfSwKK307CisKK3N0cnVjdCBhY3BpX2RyaXZlciB4ZW5f c3R1Yl9wcm9jZXNzb3JfZHJpdmVyID0geworCS8qIHNhbWUgbmFtZSBhcyBuYXRpdmUgcHJvY2Vz c29yIGRyaXZlciB0byBibG9jayBuYXRpdmUgbG9hZGVkICovCisJLm5hbWUgPSAicHJvY2Vzc29y IiwKKwkuY2xhc3MgPSBBQ1BJX1BST0NFU1NPUl9DTEFTUywKKwkuaWRzID0gcHJvY2Vzc29yX2Rl dmljZV9pZHMsCit9OworRVhQT1JUX1NZTUJPTF9HUEwoeGVuX3N0dWJfcHJvY2Vzc29yX2RyaXZl cik7CisKK3N0YXRpYyBpbnQgX19pbml0IHhlbl9zdHViX3Byb2Nlc3Nvcl9pbml0KHZvaWQpCit7 CisJaWYgKCF4ZW5faW5pdGlhbF9kb21haW4oKSkKKwkJcmV0dXJuIC1FTk9ERVY7CisKKwkvKiBq dXN0IHJlc2VydmUgc3BhY2UgZm9yIFhlbiwgYmxvY2sgbmF0aXZlIGRyaXZlciBsb2FkZWQgKi8K KwlyZXR1cm4gYWNwaV9idXNfcmVnaXN0ZXJfZHJpdmVyKCZ4ZW5fc3R1Yl9wcm9jZXNzb3JfZHJp dmVyKTsKK30KK3N1YnN5c19pbml0Y2FsbCh4ZW5fc3R1Yl9wcm9jZXNzb3JfaW5pdCk7CisKICNl bmRpZgpkaWZmIC0tZ2l0IGEvaW5jbHVkZS94ZW4vYWNwaS5oIGIvaW5jbHVkZS94ZW4vYWNwaS5o CmluZGV4IDczNjZlNTguLjFjOTllYjUgMTAwNjQ0Ci0tLSBhL2luY2x1ZGUveGVuL2FjcGkuaAor KysgYi9pbmNsdWRlL3hlbi9hY3BpLmgKQEAgLTQ2LDYgKzQ2LDEyIEBACiAKIGV4dGVybiBzdHJ1 Y3QgYWNwaV9kcml2ZXIgeGVuX3N0dWJfbWVtb3J5X2RldmljZV9kcml2ZXI7CiAKKyNkZWZpbmUg QUNQSV9QUk9DRVNTT1JfQ0xBU1MgICAgICAgICAgICAicHJvY2Vzc29yIgorI2RlZmluZSBBQ1BJ X1BST0NFU1NPUl9ERVZJQ0VfSElEICAgICAgICJBQ1BJMDAwNyIKKyNkZWZpbmUgQUNQSV9QUk9D RVNTT1JfREVWSUNFX05BTUUgICAgICAiUHJvY2Vzc29yIgorCitleHRlcm4gc3RydWN0IGFjcGlf ZHJpdmVyIHhlbl9zdHViX3Byb2Nlc3Nvcl9kcml2ZXI7CisKIGludCB4ZW5fYWNwaV9ub3RpZnlf aHlwZXJ2aXNvcl9zdGF0ZSh1OCBzbGVlcF9zdGF0ZSwKIAkJCQkgICAgIHUzMiBwbTFhX2NudCwg dTMyIHBtMWJfY25kKTsKIAotLSAKMS43LjEKCg== --_002_DE8DF0795D48FD4CA783C40EC82923353C3DB4SHSMSX101ccrcorpi_--