From: Stefan Hajnoczi <stefanha@gmail.com>
To: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowang@redhat.com>,
"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
qemu-devel@nongnu.org, "Peter Xu" <peterx@redhat.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Edgar E . Iglesias" <edgar.iglesias@xilinx.com>,
qemu-block@nongnu.org, "Li Qiang" <liq3ea@163.com>,
"Emilio G . Cota" <cota@braap.org>,
"Joel Stanley" <joel@jms.id.au>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Laszlo Ersek" <lersek@redhat.com>,
"Robert Foley" <robert.foley@linaro.org>,
"Alistair Francis" <alistair@alistair23.me>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Beniamino Galvani" <b.galvani@gmail.com>,
"Eric Auger" <eric.auger@redhat.com>,
qemu-arm@nongnu.org, "Peter Chubb" <peter.chubb@nicta.com.au>,
"Cédric Le Goater" <clg@kaod.org>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Richard Henderson" <rth@twiddle.net>,
"Tony Nguyen" <tony.nguyen@bt.com>,
"Prasad J Pandit" <pjp@fedoraproject.org>,
"Alexander Bulekov" <alxndr@bu.edu>,
"Andrew Jeffery" <andrew@aj.id.au>,
"Klaus Jensen" <k.jensen@samsung.com>,
"Emanuele Giuseppe Esposito" <e.emanuelegiuseppe@gmail.com>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Andrew Baumann" <Andrew.Baumann@microsoft.com>,
qemu-ppc@nongnu.org, "Jan Kiszka" <jan.kiszka@web.de>
Subject: Re: [RFC PATCH 00/12] hw: Forbid DMA write accesses to MMIO regions
Date: Tue, 8 Sep 2020 15:37:25 +0100 [thread overview]
Message-ID: <20200908143725.GD7154@stefanha-x1.localdomain> (raw)
In-Reply-To: <20200903110831.353476-1-philmd@redhat.com>
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On Thu, Sep 03, 2020 at 01:08:19PM +0200, Philippe Mathieu-Daudé wrote:
> The main patch is:
> "exec/memattrs: Introduce MemTxAttrs::direct_access field".
> This way we can restrict accesses to ROM/RAM by setting the
> 'direct_access' field. Illegal accesses return MEMTX_BUS_ERROR.
QEMU needs to simulate the behavior of real hardware. What is the
behavior of real hardware?
Stefan
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next prev parent reply other threads:[~2020-09-09 9:15 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 11:08 [RFC PATCH 00/12] hw: Forbid DMA write accesses to MMIO regions Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 01/12] pci: pass along the return value of dma_memory_rw Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 02/12] dma: Let dma_memory_valid() take MemTxAttrs argument Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 03/12] dma: Let dma_memory_set() " Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 04/12] dma: Let dma_memory_rw_relaxed() " Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 05/12] dma: Let dma_memory_rw() " Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 06/12] dma: Let dma_memory_read/write() " Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 07/12] dma: Let dma_memory_map() " Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 08/12] docs/devel/loads-stores: Add regexp for DMA functions Philippe Mathieu-Daudé
2020-09-03 11:08 ` [PATCH 09/12] dma: Let load/store DMA functions take MemTxAttrs argument Philippe Mathieu-Daudé
2020-09-03 11:08 ` [RFC PATCH 10/12] exec/memattrs: Introduce MemTxAttrs::direct_access field Philippe Mathieu-Daudé
2020-09-03 11:08 ` [RFC PATCH 11/12] hw/pci: Only allow PCI slave devices to write to direct memory Philippe Mathieu-Daudé
2020-09-03 12:26 ` Paolo Bonzini
2020-09-03 13:18 ` Philippe Mathieu-Daudé
2020-09-03 21:43 ` Paolo Bonzini
2020-09-03 11:08 ` [RFC PATCH 12/12] dma: Assert when device writes to indirect memory (such MMIO regions) Philippe Mathieu-Daudé
2020-09-03 13:51 ` Edgar E. Iglesias
2020-09-03 13:37 ` [RFC PATCH 00/12] hw: Forbid DMA write accesses to MMIO regions Laszlo Ersek
2020-09-03 13:58 ` Peter Maydell
2020-09-03 14:24 ` Edgar E. Iglesias
2020-09-03 15:46 ` Paolo Bonzini
2020-09-03 15:50 ` Edgar E. Iglesias
2020-09-03 17:53 ` Paolo Bonzini
2020-09-03 19:46 ` Edgar E. Iglesias
2020-09-04 2:50 ` Jason Wang
2020-09-05 2:27 ` Li Qiang
2020-09-08 14:37 ` Stefan Hajnoczi [this message]
2020-09-09 13:23 ` Peter Maydell
2020-09-09 13:41 ` Stefan Hajnoczi
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