From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH 00/35] Alpha system emulation, v4
Date: Tue, 10 May 2011 22:33:28 +0100 [thread overview]
Message-ID: <201105102233.28788.paul@codesourcery.com> (raw)
In-Reply-To: <1304976889-29675-1-git-send-email-rth@twiddle.net>
> Since virtio devices intentionally access memory directly, we
> are not actually dependant on the iommu patches in order to
> make progress. Merely fixing the PCI interrupt setup was
> enough to get the virtio-pci interface working.
There should be nothing special about virtio-pci. These devices should access
memory in exactly the same way as any other PCI device. Bypassing the normal
PCI iommu is IMO a serious bug.
Paul
next prev parent reply other threads:[~2011-05-10 21:33 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-09 21:34 [Qemu-devel] [PATCH 00/35] Alpha system emulation, v4 Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 01/35] Export the unassigned_mem read/write functions Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 02/35] target-alpha: Disassemble EV6 PALcode instructions Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 03/35] pci: Export pci_to_cpu_addr Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 04/35] target-alpha: Single-step properly across branches Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 05/35] target-alpha: Remove partial support for palcode emulation Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 06/35] target-alpha: Enable the alpha-softmmu target Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 07/35] target-alpha: Tidy exception constants Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 08/35] target-alpha: Rationalize internal processor registers Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 09/35] target-alpha: Cleanup MMU modes Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 10/35] target-alpha: Fixup translation of PALmode instructions Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 11/35] target-alpha: Add IPRs to be used by the emulation PALcode Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 12/35] target-alpha: Tidy up arithmetic exceptions Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 13/35] target-alpha: Use do_restore_state for " Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 14/35] target-alpha: Merge HW_REI and HW_RET implementations Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 15/35] target-alpha: Implement do_interrupt for system mode Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 16/35] target-alpha: Swap shadow registers moving to/from PALmode Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 17/35] target-alpha: Add various symbolic constants Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 18/35] target-alpha: Use kernel mmu_idx for pal_mode Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 19/35] target-alpha: All ISA checks to use TB->FLAGS Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 20/35] target-alpha: Disable interrupts properly Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 21/35] target-alpha: Implement more CALL_PAL values inline Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 22/35] target-alpha: Implement cpu_alpha_handle_mmu_fault for system mode Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 23/35] target-alpha: Remap PIO space for 43-bit KSEG for EV6 Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 24/35] target-alpha: Trap for unassigned and unaligned addresses Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 25/35] target-alpha: Include the PCC_OFS in the RPCC return value Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 26/35] target-alpha: Use a fixed frequency for the RPCC in system mode Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 27/35] target-alpha: Implement TLB flush primitives Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 28/35] target-alpha: Add custom PALcode image for CLIPPER emulation Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 29/35] target-alpha: Add " Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 30/35] target-alpha: Implement WAIT IPR Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 31/35] target-alpha: Implement HALT IPR Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 32/35] target-alpha: Add high-resolution access to wall clock and an alarm Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 33/35] target-alpha: Properly select the VGA controler to use Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 34/35] target-alpha: Enable PCI IDE Richard Henderson
2011-05-09 21:34 ` [Qemu-devel] [PATCH 35/35] target-alpha: Add ps2 keyboard Richard Henderson
2011-05-10 21:33 ` Paul Brook [this message]
2011-05-10 22:09 ` [Qemu-devel] [PATCH 00/35] Alpha system emulation, v4 Richard Henderson
2011-05-10 22:44 ` Paul Brook
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