From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: [PATCH] Add ability to drop pages through testdev Date: Wed, 22 Dec 2010 17:18:49 +0200 Message-ID: <20101222151849.GF2231@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org To: avi@redhat.com, mtosatti@redhat.com Return-path: Received: from mx1.redhat.com ([209.132.183.28]:51731 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752275Ab0LVPSv (ORCPT ); Wed, 22 Dec 2010 10:18:51 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id oBMFIpfD013298 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 22 Dec 2010 10:18:51 -0500 Content-Disposition: inline Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Gleb Natapov diff --git a/hw/testdev.c b/hw/testdev.c index d1abf59..29df385 100644 --- a/hw/testdev.c +++ b/hw/testdev.c @@ -1,3 +1,4 @@ +#include #include "hw.h" #include "qdev.h" #include "isa.h" @@ -46,6 +47,16 @@ static uint32_t test_device_ioport_read(void *opaque, uint32_t addr) return test_device_ioport_data; } +static void test_device_flush_page(void *opaque, uint32_t addr, uint32_t data) +{ + target_phys_addr_t len = 4096; + void *a = cpu_physical_memory_map(data & ~0xffful, &len, 0); + + mprotect(a, 4096, PROT_NONE); + mprotect(a, 4096, PROT_READ|PROT_WRITE); + cpu_physical_memory_unmap(a, len, 0, 0); +} + static char *iomem_buf; static uint32_t test_iomem_readb(void *opaque, target_phys_addr_t addr) @@ -104,6 +115,7 @@ static int init_test_device(ISADevice *isa) register_ioport_write(0xe0, 1, 2, test_device_ioport_write, dev); register_ioport_read(0xe0, 1, 4, test_device_ioport_read, dev); register_ioport_write(0xe0, 1, 4, test_device_ioport_write, dev); + register_ioport_write(0xe4, 1, 4, test_device_flush_page, dev); register_ioport_write(0x2000, 24, 1, test_device_irq_line, NULL); iomem_buf = qemu_mallocz(0x10000); iomem = cpu_register_io_memory(test_iomem_read, test_iomem_write, NULL); -- Gleb.